Home / 62,708.40-94,077.20-21,155.40

Finding the Fourth Proportional to 62,708.40, 94,077.20 and 21,155.40

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Solution

The fourth proportional to 62,708.40, 94,077.20 and 21,155.40 is: 31,738.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,708.40 : 94,077.20 = 21,155.40 : x
  2. Step 2: Convert to fraction form
    62,708.40/94,077.20 = 21,155.40/x
  3. Step 3: Cross multiply
    62,708.40x = 94,077.20 × 21,155.40
  4. Step 4: Simplify right side
    62,708.40x = 1,990,240,691.10
  5. Step 5: Solve for x
    x = 1,990,240,691.10/62,708.40
  6. Step 6: Final answer
    x = 31,738.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.