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Finding the Fourth Proportional to 86,123.52, 118,836.72 and 52,126.20

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Solution

The fourth proportional to 86,123.52, 118,836.72 and 52,126.20 is: 71,925.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,123.52 : 118,836.72 = 52,126.20 : x
  2. Step 2: Convert to fraction form
    86,123.52/118,836.72 = 52,126.20/x
  3. Step 3: Cross multiply
    86,123.52x = 118,836.72 × 52,126.20
  4. Step 4: Simplify right side
    86,123.52x = 6,194,506,634.06
  5. Step 5: Solve for x
    x = 6,194,506,634.06/86,123.52
  6. Step 6: Final answer
    x = 71,925.84

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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.