Home / 87,240.77-130,861.22-28,076.42

Finding the Fourth Proportional to 87,240.77, 130,861.22 and 28,076.42

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Solution

The fourth proportional to 87,240.77, 130,861.22 and 28,076.42 is: 42,114.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,240.77 : 130,861.22 = 28,076.42 : x
  2. Step 2: Convert to fraction form
    87,240.77/130,861.22 = 28,076.42/x
  3. Step 3: Cross multiply
    87,240.77x = 130,861.22 × 28,076.42
  4. Step 4: Simplify right side
    87,240.77x = 3,674,113,779.74
  5. Step 5: Solve for x
    x = 3,674,113,779.74/87,240.77
  6. Step 6: Final answer
    x = 42,114.64

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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.