Home / 84,459.27-116,545.86-57,179.86

Finding the Fourth Proportional to 84,459.27, 116,545.86 and 57,179.86

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Solution

The fourth proportional to 84,459.27, 116,545.86 and 57,179.86 is: 78,902.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,459.27 : 116,545.86 = 57,179.86 : x
  2. Step 2: Convert to fraction form
    84,459.27/116,545.86 = 57,179.86/x
  3. Step 3: Cross multiply
    84,459.27x = 116,545.86 × 57,179.86
  4. Step 4: Simplify right side
    84,459.27x = 6,664,075,818.16
  5. Step 5: Solve for x
    x = 6,664,075,818.16/84,459.27
  6. Step 6: Final answer
    x = 78,902.83

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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.