Home / 86,488.20-119,372.84-56,220.88

Finding the Fourth Proportional to 86,488.20, 119,372.84 and 56,220.88

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Solution

The fourth proportional to 86,488.20, 119,372.84 and 56,220.88 is: 77,597.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,488.20 : 119,372.84 = 56,220.88 : x
  2. Step 2: Convert to fraction form
    86,488.20/119,372.84 = 56,220.88/x
  3. Step 3: Cross multiply
    86,488.20x = 119,372.84 × 56,220.88
  4. Step 4: Simplify right side
    86,488.20x = 6,711,246,112.90
  5. Step 5: Solve for x
    x = 6,711,246,112.90/86,488.20
  6. Step 6: Final answer
    x = 77,597.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.