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Finding the Fourth Proportional to 56,125.59, 77,528.79 and 52,139.79

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Solution

The fourth proportional to 56,125.59, 77,528.79 and 52,139.79 is: 72,023.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,125.59 : 77,528.79 = 52,139.79 : x
  2. Step 2: Convert to fraction form
    56,125.59/77,528.79 = 52,139.79/x
  3. Step 3: Cross multiply
    56,125.59x = 77,528.79 × 52,139.79
  4. Step 4: Simplify right side
    56,125.59x = 4,042,334,829.55
  5. Step 5: Solve for x
    x = 4,042,334,829.55/56,125.59
  6. Step 6: Final answer
    x = 72,023.03

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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.