Home / 87,302.40-130,623.84-53,448

Finding the Fourth Proportional to 87,302.40, 130,623.84 and 53,448

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Solution

The fourth proportional to 87,302.40, 130,623.84 and 53,448 is: 79,970.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,302.40 : 130,623.84 = 53,448 : x
  2. Step 2: Convert to fraction form
    87,302.40/130,623.84 = 53,448/x
  3. Step 3: Cross multiply
    87,302.40x = 130,623.84 × 53,448
  4. Step 4: Simplify right side
    87,302.40x = 6,981,583,000.32
  5. Step 5: Solve for x
    x = 6,981,583,000.32/87,302.40
  6. Step 6: Final answer
    x = 79,970.12

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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.