Home / 54,802.31-75,625.65-30,931.20

Finding the Fourth Proportional to 54,802.31, 75,625.65 and 30,931.20

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Solution

The fourth proportional to 54,802.31, 75,625.65 and 30,931.20 is: 42,684.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,802.31 : 75,625.65 = 30,931.20 : x
  2. Step 2: Convert to fraction form
    54,802.31/75,625.65 = 30,931.20/x
  3. Step 3: Cross multiply
    54,802.31x = 75,625.65 × 30,931.20
  4. Step 4: Simplify right side
    54,802.31x = 2,339,192,105.28
  5. Step 5: Solve for x
    x = 2,339,192,105.28/54,802.31
  6. Step 6: Final answer
    x = 42,684.19

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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.