Home / 86,360.20-129,557.92-36,440.30

Finding the Fourth Proportional to 86,360.20, 129,557.92 and 36,440.30

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Solution

The fourth proportional to 86,360.20, 129,557.92 and 36,440.30 is: 54,667.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,360.20 : 129,557.92 = 36,440.30 : x
  2. Step 2: Convert to fraction form
    86,360.20/129,557.92 = 36,440.30/x
  3. Step 3: Cross multiply
    86,360.20x = 129,557.92 × 36,440.30
  4. Step 4: Simplify right side
    86,360.20x = 4,721,129,472.18
  5. Step 5: Solve for x
    x = 4,721,129,472.18/86,360.20
  6. Step 6: Final answer
    x = 54,667.88

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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.