Home / 54,430.12-75,104.10-30,557.80

Finding the Fourth Proportional to 54,430.12, 75,104.10 and 30,557.80

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Solution

The fourth proportional to 54,430.12, 75,104.10 and 30,557.80 is: 42,164.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,430.12 : 75,104.10 = 30,557.80 : x
  2. Step 2: Convert to fraction form
    54,430.12/75,104.10 = 30,557.80/x
  3. Step 3: Cross multiply
    54,430.12x = 75,104.10 × 30,557.80
  4. Step 4: Simplify right side
    54,430.12x = 2,295,016,066.98
  5. Step 5: Solve for x
    x = 2,295,016,066.98/54,430.12
  6. Step 6: Final answer
    x = 42,164.45

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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.