Home / 54,430.13-75,112.92-30,556.19

Finding the Fourth Proportional to 54,430.13, 75,112.92 and 30,556.19

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Solution

The fourth proportional to 54,430.13, 75,112.92 and 30,556.19 is: 42,167.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,430.13 : 75,112.92 = 30,556.19 : x
  2. Step 2: Convert to fraction form
    54,430.13/75,112.92 = 30,556.19/x
  3. Step 3: Cross multiply
    54,430.13x = 75,112.92 × 30,556.19
  4. Step 4: Simplify right side
    54,430.13x = 2,295,164,654.97
  5. Step 5: Solve for x
    x = 2,295,164,654.97/54,430.13
  6. Step 6: Final answer
    x = 42,167.17

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.