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Finding the Fourth Proportional to 87,123.55, 130,702.32 and 27,954.67

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Solution

The fourth proportional to 87,123.55, 130,702.32 and 27,954.67 is: 41,937.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,123.55 : 130,702.32 = 27,954.67 : x
  2. Step 2: Convert to fraction form
    87,123.55/130,702.32 = 27,954.67/x
  3. Step 3: Cross multiply
    87,123.55x = 130,702.32 × 27,954.67
  4. Step 4: Simplify right side
    87,123.55x = 3,653,740,223.83
  5. Step 5: Solve for x
    x = 3,653,740,223.83/87,123.55
  6. Step 6: Final answer
    x = 41,937.46

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1.5x scale

Why These Related Problems?

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