Home / 63,139.20-94,708.80-51,619.20

Finding the Fourth Proportional to 63,139.20, 94,708.80 and 51,619.20

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Solution

The fourth proportional to 63,139.20, 94,708.80 and 51,619.20 is: 77,428.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,139.20 : 94,708.80 = 51,619.20 : x
  2. Step 2: Convert to fraction form
    63,139.20/94,708.80 = 51,619.20/x
  3. Step 3: Cross multiply
    63,139.20x = 94,708.80 × 51,619.20
  4. Step 4: Simplify right side
    63,139.20x = 4,888,792,488.96
  5. Step 5: Solve for x
    x = 4,888,792,488.96/63,139.20
  6. Step 6: Final answer
    x = 77,428.80

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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.