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Finding the Fourth Proportional to 87,156, 130,753.44 and 31,752

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Solution

The fourth proportional to 87,156, 130,753.44 and 31,752 is: 47,635.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,156 : 130,753.44 = 31,752 : x
  2. Step 2: Convert to fraction form
    87,156/130,753.44 = 31,752/x
  3. Step 3: Cross multiply
    87,156x = 130,753.44 × 31,752
  4. Step 4: Simplify right side
    87,156x = 4,151,683,226.88
  5. Step 5: Solve for x
    x = 4,151,683,226.88/87,156
  6. Step 6: Final answer
    x = 47,635.08

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.