Home / 86,461.28-119,414.96-58,117.76

Finding the Fourth Proportional to 86,461.28, 119,414.96 and 58,117.76

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Solution

The fourth proportional to 86,461.28, 119,414.96 and 58,117.76 is: 80,268.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,461.28 : 119,414.96 = 58,117.76 : x
  2. Step 2: Convert to fraction form
    86,461.28/119,414.96 = 58,117.76/x
  3. Step 3: Cross multiply
    86,461.28x = 119,414.96 × 58,117.76
  4. Step 4: Simplify right side
    86,461.28x = 6,940,129,985.69
  5. Step 5: Solve for x
    x = 6,940,129,985.69/86,461.28
  6. Step 6: Final answer
    x = 80,268.65

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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.