Home / 79,117.15-118,633.16-31,708.45

Finding the Fourth Proportional to 79,117.15, 118,633.16 and 31,708.45

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Solution

The fourth proportional to 79,117.15, 118,633.16 and 31,708.45 is: 47,545.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,117.15 : 118,633.16 = 31,708.45 : x
  2. Step 2: Convert to fraction form
    79,117.15/118,633.16 = 31,708.45/x
  3. Step 3: Cross multiply
    79,117.15x = 118,633.16 × 31,708.45
  4. Step 4: Simplify right side
    79,117.15x = 3,761,673,463.66
  5. Step 5: Solve for x
    x = 3,761,673,463.66/79,117.15
  6. Step 6: Final answer
    x = 47,545.62

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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.