Home / 63,719.18-87,956.85-42,490.70

Finding the Fourth Proportional to 63,719.18, 87,956.85 and 42,490.70

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Solution

The fourth proportional to 63,719.18, 87,956.85 and 42,490.70 is: 58,653.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,719.18 : 87,956.85 = 42,490.70 : x
  2. Step 2: Convert to fraction form
    63,719.18/87,956.85 = 42,490.70/x
  3. Step 3: Cross multiply
    63,719.18x = 87,956.85 × 42,490.70
  4. Step 4: Simplify right side
    63,719.18x = 3,737,348,126.30
  5. Step 5: Solve for x
    x = 3,737,348,126.30/63,719.18
  6. Step 6: Final answer
    x = 58,653.42

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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.