Home / 87,295.77-130,685.31-53,908.50

Finding the Fourth Proportional to 87,295.77, 130,685.31 and 53,908.50

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Solution

The fourth proportional to 87,295.77, 130,685.31 and 53,908.50 is: 80,703.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,295.77 : 130,685.31 = 53,908.50 : x
  2. Step 2: Convert to fraction form
    87,295.77/130,685.31 = 53,908.50/x
  3. Step 3: Cross multiply
    87,295.77x = 130,685.31 × 53,908.50
  4. Step 4: Simplify right side
    87,295.77x = 7,045,049,034.14
  5. Step 5: Solve for x
    x = 7,045,049,034.14/87,295.77
  6. Step 6: Final answer
    x = 80,703.21

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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.