Home / 87,181.64-130,777.14-28,012.76

Finding the Fourth Proportional to 87,181.64, 130,777.14 and 28,012.76

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Solution

The fourth proportional to 87,181.64, 130,777.14 and 28,012.76 is: 42,020.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,181.64 : 130,777.14 = 28,012.76 : x
  2. Step 2: Convert to fraction form
    87,181.64/130,777.14 = 28,012.76/x
  3. Step 3: Cross multiply
    87,181.64x = 130,777.14 × 28,012.76
  4. Step 4: Simplify right side
    87,181.64x = 3,663,428,636.31
  5. Step 5: Solve for x
    x = 3,663,428,636.31/87,181.64
  6. Step 6: Final answer
    x = 42,020.64

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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.