Home / 86,591.04-119,563.20-67,781.76

Finding the Fourth Proportional to 86,591.04, 119,563.20 and 67,781.76

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Solution

The fourth proportional to 86,591.04, 119,563.20 and 67,781.76 is: 93,591.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,591.04 : 119,563.20 = 67,781.76 : x
  2. Step 2: Convert to fraction form
    86,591.04/119,563.20 = 67,781.76/x
  3. Step 3: Cross multiply
    86,591.04x = 119,563.20 × 67,781.76
  4. Step 4: Simplify right side
    86,591.04x = 8,104,204,127.23
  5. Step 5: Solve for x
    x = 8,104,204,127.23/86,591.04
  6. Step 6: Final answer
    x = 93,591.72

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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.