Home / 86,565.20-129,847.80-36,628.70

Finding the Fourth Proportional to 86,565.20, 129,847.80 and 36,628.70

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Solution

The fourth proportional to 86,565.20, 129,847.80 and 36,628.70 is: 54,943.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,565.20 : 129,847.80 = 36,628.70 : x
  2. Step 2: Convert to fraction form
    86,565.20/129,847.80 = 36,628.70/x
  3. Step 3: Cross multiply
    86,565.20x = 129,847.80 × 36,628.70
  4. Step 4: Simplify right side
    86,565.20x = 4,756,156,111.86
  5. Step 5: Solve for x
    x = 4,756,156,111.86/86,565.20
  6. Step 6: Final answer
    x = 54,943.05

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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.