Home / 97,780.12-134,925.40-54,753.63

Finding the Fourth Proportional to 97,780.12, 134,925.40 and 54,753.63

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Solution

The fourth proportional to 97,780.12, 134,925.40 and 54,753.63 is: 75,553.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,780.12 : 134,925.40 = 54,753.63 : x
  2. Step 2: Convert to fraction form
    97,780.12/134,925.40 = 54,753.63/x
  3. Step 3: Cross multiply
    97,780.12x = 134,925.40 × 54,753.63
  4. Step 4: Simplify right side
    97,780.12x = 7,387,655,429.20
  5. Step 5: Solve for x
    x = 7,387,655,429.20/97,780.12
  6. Step 6: Final answer
    x = 75,553.76

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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.