Home / 83,247.64-124,715.94-64,740.76

Finding the Fourth Proportional to 83,247.64, 124,715.94 and 64,740.76

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Solution

The fourth proportional to 83,247.64, 124,715.94 and 64,740.76 is: 96,990.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,247.64 : 124,715.94 = 64,740.76 : x
  2. Step 2: Convert to fraction form
    83,247.64/124,715.94 = 64,740.76/x
  3. Step 3: Cross multiply
    83,247.64x = 124,715.94 × 64,740.76
  4. Step 4: Simplify right side
    83,247.64x = 8,074,204,739.71
  5. Step 5: Solve for x
    x = 8,074,204,739.71/83,247.64
  6. Step 6: Final answer
    x = 96,990.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.