Home / 87,307.47-131,000.09-45,744.75

Finding the Fourth Proportional to 87,307.47, 131,000.09 and 45,744.75

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Solution

The fourth proportional to 87,307.47, 131,000.09 and 45,744.75 is: 68,637.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,307.47 : 131,000.09 = 45,744.75 : x
  2. Step 2: Convert to fraction form
    87,307.47/131,000.09 = 45,744.75/x
  3. Step 3: Cross multiply
    87,307.47x = 131,000.09 × 45,744.75
  4. Step 4: Simplify right side
    87,307.47x = 5,992,566,138.30
  5. Step 5: Solve for x
    x = 5,992,566,138.30/87,307.47
  6. Step 6: Final answer
    x = 68,637.50

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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.