Home / 55,109.16-75,555.31-54,112.71

Finding the Fourth Proportional to 55,109.16, 75,555.31 and 54,112.71

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Solution

The fourth proportional to 55,109.16, 75,555.31 and 54,112.71 is: 74,189.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,109.16 : 75,555.31 = 54,112.71 : x
  2. Step 2: Convert to fraction form
    55,109.16/75,555.31 = 54,112.71/x
  3. Step 3: Cross multiply
    55,109.16x = 75,555.31 × 54,112.71
  4. Step 4: Simplify right side
    55,109.16x = 4,088,502,251.31
  5. Step 5: Solve for x
    x = 4,088,502,251.31/55,109.16
  6. Step 6: Final answer
    x = 74,189.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.