Home / 87,188.96-130,776.12-28,008.56

Finding the Fourth Proportional to 87,188.96, 130,776.12 and 28,008.56

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Solution

The fourth proportional to 87,188.96, 130,776.12 and 28,008.56 is: 42,010.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,188.96 : 130,776.12 = 28,008.56 : x
  2. Step 2: Convert to fraction form
    87,188.96/130,776.12 = 28,008.56/x
  3. Step 3: Cross multiply
    87,188.96x = 130,776.12 × 28,008.56
  4. Step 4: Simplify right side
    87,188.96x = 3,662,850,803.59
  5. Step 5: Solve for x
    x = 3,662,850,803.59/87,188.96
  6. Step 6: Final answer
    x = 42,010.49

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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.