Home / 87,264.09-130,896.18-28,104.39

Finding the Fourth Proportional to 87,264.09, 130,896.18 and 28,104.39

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Solution

The fourth proportional to 87,264.09, 130,896.18 and 28,104.39 is: 42,156.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,264.09 : 130,896.18 = 28,104.39 : x
  2. Step 2: Convert to fraction form
    87,264.09/130,896.18 = 28,104.39/x
  3. Step 3: Cross multiply
    87,264.09x = 130,896.18 × 28,104.39
  4. Step 4: Simplify right side
    87,264.09x = 3,678,757,292.23
  5. Step 5: Solve for x
    x = 3,678,757,292.23/87,264.09
  6. Step 6: Final answer
    x = 42,156.60

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1.5x scale

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.