Home / 87,543.95-130,483.15-82,561.23

Finding the Fourth Proportional to 87,543.95, 130,483.15 and 82,561.23

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Solution

The fourth proportional to 87,543.95, 130,483.15 and 82,561.23 is: 123,056.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,543.95 : 130,483.15 = 82,561.23 : x
  2. Step 2: Convert to fraction form
    87,543.95/130,483.15 = 82,561.23/x
  3. Step 3: Cross multiply
    87,543.95x = 130,483.15 × 82,561.23
  4. Step 4: Simplify right side
    87,543.95x = 10,772,849,151.87
  5. Step 5: Solve for x
    x = 10,772,849,151.87/87,543.95
  6. Step 6: Final answer
    x = 123,056.47

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.