Home / 87,292.48-130,938.80-28,136.96

Finding the Fourth Proportional to 87,292.48, 130,938.80 and 28,136.96

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Solution

The fourth proportional to 87,292.48, 130,938.80 and 28,136.96 is: 42,205.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,292.48 : 130,938.80 = 28,136.96 : x
  2. Step 2: Convert to fraction form
    87,292.48/130,938.80 = 28,136.96/x
  3. Step 3: Cross multiply
    87,292.48x = 130,938.80 × 28,136.96
  4. Step 4: Simplify right side
    87,292.48x = 3,684,219,778.05
  5. Step 5: Solve for x
    x = 3,684,219,778.05/87,292.48
  6. Step 6: Final answer
    x = 42,205.47

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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.