Home / 87,293.12-130,972.08-45,710.96

Finding the Fourth Proportional to 87,293.12, 130,972.08 and 45,710.96

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Solution

The fourth proportional to 87,293.12, 130,972.08 and 45,710.96 is: 68,583.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,293.12 : 130,972.08 = 45,710.96 : x
  2. Step 2: Convert to fraction form
    87,293.12/130,972.08 = 45,710.96/x
  3. Step 3: Cross multiply
    87,293.12x = 130,972.08 × 45,710.96
  4. Step 4: Simplify right side
    87,293.12x = 5,986,859,510.00
  5. Step 5: Solve for x
    x = 5,986,859,510.00/87,293.12
  6. Step 6: Final answer
    x = 68,583.41

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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.