Home / 87,346.16-131,079.88-39,967.08

Finding the Fourth Proportional to 87,346.16, 131,079.88 and 39,967.08

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Solution

The fourth proportional to 87,346.16, 131,079.88 and 39,967.08 is: 59,978.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,346.16 : 131,079.88 = 39,967.08 : x
  2. Step 2: Convert to fraction form
    87,346.16/131,079.88 = 39,967.08/x
  3. Step 3: Cross multiply
    87,346.16x = 131,079.88 × 39,967.08
  4. Step 4: Simplify right side
    87,346.16x = 5,238,880,050.35
  5. Step 5: Solve for x
    x = 5,238,880,050.35/87,346.16
  6. Step 6: Final answer
    x = 59,978.37

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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.