Home / 87,000.12-130,508.82-27,820.92

Finding the Fourth Proportional to 87,000.12, 130,508.82 and 27,820.92

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Solution

The fourth proportional to 87,000.12, 130,508.82 and 27,820.92 is: 41,734.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,000.12 : 130,508.82 = 27,820.92 : x
  2. Step 2: Convert to fraction form
    87,000.12/130,508.82 = 27,820.92/x
  3. Step 3: Cross multiply
    87,000.12x = 130,508.82 × 27,820.92
  4. Step 4: Simplify right side
    87,000.12x = 3,630,875,440.51
  5. Step 5: Solve for x
    x = 3,630,875,440.51/87,000.12
  6. Step 6: Final answer
    x = 41,734.14

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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.