Home / 87,323.85-131,077.40-77,392.17

Finding the Fourth Proportional to 87,323.85, 131,077.40 and 77,392.17

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Solution

The fourth proportional to 87,323.85, 131,077.40 and 77,392.17 is: 116,169.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,323.85 : 131,077.40 = 77,392.17 : x
  2. Step 2: Convert to fraction form
    87,323.85/131,077.40 = 77,392.17/x
  3. Step 3: Cross multiply
    87,323.85x = 131,077.40 × 77,392.17
  4. Step 4: Simplify right side
    87,323.85x = 10,144,364,037.00
  5. Step 5: Solve for x
    x = 10,144,364,037.00/87,323.85
  6. Step 6: Final answer
    x = 116,169.45

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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.