Home / 86,677.40-119,534.77-66,535.13

Finding the Fourth Proportional to 86,677.40, 119,534.77 and 66,535.13

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Solution

The fourth proportional to 86,677.40, 119,534.77 and 66,535.13 is: 91,757.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,677.40 : 119,534.77 = 66,535.13 : x
  2. Step 2: Convert to fraction form
    86,677.40/119,534.77 = 66,535.13/x
  3. Step 3: Cross multiply
    86,677.40x = 119,534.77 × 66,535.13
  4. Step 4: Simplify right side
    86,677.40x = 7,953,261,843.48
  5. Step 5: Solve for x
    x = 7,953,261,843.48/86,677.40
  6. Step 6: Final answer
    x = 91,757.04

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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.