Home / 87,561.08-120,834.06-47,817.08

Finding the Fourth Proportional to 87,561.08, 120,834.06 and 47,817.08

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Solution

The fourth proportional to 87,561.08, 120,834.06 and 47,817.08 is: 65,987.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,561.08 : 120,834.06 = 47,817.08 : x
  2. Step 2: Convert to fraction form
    87,561.08/120,834.06 = 47,817.08/x
  3. Step 3: Cross multiply
    87,561.08x = 120,834.06 × 47,817.08
  4. Step 4: Simplify right side
    87,561.08x = 5,777,931,913.74
  5. Step 5: Solve for x
    x = 5,777,931,913.74/87,561.08
  6. Step 6: Final answer
    x = 65,987.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.