Home / 86,885.47-129,789.12-63,003.43

Finding the Fourth Proportional to 86,885.47, 129,789.12 and 63,003.43

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Solution

The fourth proportional to 86,885.47, 129,789.12 and 63,003.43 is: 94,114.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,885.47 : 129,789.12 = 63,003.43 : x
  2. Step 2: Convert to fraction form
    86,885.47/129,789.12 = 63,003.43/x
  3. Step 3: Cross multiply
    86,885.47x = 129,789.12 × 63,003.43
  4. Step 4: Simplify right side
    86,885.47x = 8,177,159,736.68
  5. Step 5: Solve for x
    x = 8,177,159,736.68/86,885.47
  6. Step 6: Final answer
    x = 94,114.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.