Home / 83,157.11-124,740.68-56,491.81

Finding the Fourth Proportional to 83,157.11, 124,740.68 and 56,491.81

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Solution

The fourth proportional to 83,157.11, 124,740.68 and 56,491.81 is: 84,741.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,157.11 : 124,740.68 = 56,491.81 : x
  2. Step 2: Convert to fraction form
    83,157.11/124,740.68 = 56,491.81/x
  3. Step 3: Cross multiply
    83,157.11x = 124,740.68 × 56,491.81
  4. Step 4: Simplify right side
    83,157.11x = 7,046,826,793.83
  5. Step 5: Solve for x
    x = 7,046,826,793.83/83,157.11
  6. Step 6: Final answer
    x = 84,741.12

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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.