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Finding the Fourth Proportional to 63,790.80, 95,459.40 and 55,561.20

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Solution

The fourth proportional to 63,790.80, 95,459.40 and 55,561.20 is: 83,144.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,790.80 : 95,459.40 = 55,561.20 : x
  2. Step 2: Convert to fraction form
    63,790.80/95,459.40 = 55,561.20/x
  3. Step 3: Cross multiply
    63,790.80x = 95,459.40 × 55,561.20
  4. Step 4: Simplify right side
    63,790.80x = 5,303,838,815.28
  5. Step 5: Solve for x
    x = 5,303,838,815.28/63,790.80
  6. Step 6: Final answer
    x = 83,144.26

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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.