Home / 87,486.13-120,700.69-49,237.93

Finding the Fourth Proportional to 87,486.13, 120,700.69 and 49,237.93

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Solution

The fourth proportional to 87,486.13, 120,700.69 and 49,237.93 is: 67,931.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,486.13 : 120,700.69 = 49,237.93 : x
  2. Step 2: Convert to fraction form
    87,486.13/120,700.69 = 49,237.93/x
  3. Step 3: Cross multiply
    87,486.13x = 120,700.69 × 49,237.93
  4. Step 4: Simplify right side
    87,486.13x = 5,943,052,125.17
  5. Step 5: Solve for x
    x = 5,943,052,125.17/87,486.13
  6. Step 6: Final answer
    x = 67,931.36

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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.