Home / 74,133.17-102,311.09-42,306.85

Finding the Fourth Proportional to 74,133.17, 102,311.09 and 42,306.85

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Solution

The fourth proportional to 74,133.17, 102,311.09 and 42,306.85 is: 58,387.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,133.17 : 102,311.09 = 42,306.85 : x
  2. Step 2: Convert to fraction form
    74,133.17/102,311.09 = 42,306.85/x
  3. Step 3: Cross multiply
    74,133.17x = 102,311.09 × 42,306.85
  4. Step 4: Simplify right side
    74,133.17x = 4,328,459,787.96
  5. Step 5: Solve for x
    x = 4,328,459,787.96/74,133.17
  6. Step 6: Final answer
    x = 58,387.63

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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.