Home / 45,470.16-62,720.28-31,298.40

Finding the Fourth Proportional to 45,470.16, 62,720.28 and 31,298.40

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Solution

The fourth proportional to 45,470.16, 62,720.28 and 31,298.40 is: 43,172.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,470.16 : 62,720.28 = 31,298.40 : x
  2. Step 2: Convert to fraction form
    45,470.16/62,720.28 = 31,298.40/x
  3. Step 3: Cross multiply
    45,470.16x = 62,720.28 × 31,298.40
  4. Step 4: Simplify right side
    45,470.16x = 1,963,044,411.55
  5. Step 5: Solve for x
    x = 1,963,044,411.55/45,470.16
  6. Step 6: Final answer
    x = 43,172.15

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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.