Home / 78,731.92-118,063.66-22,559.64

Finding the Fourth Proportional to 78,731.92, 118,063.66 and 22,559.64

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Solution

The fourth proportional to 78,731.92, 118,063.66 and 22,559.64 is: 33,829.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,731.92 : 118,063.66 = 22,559.64 : x
  2. Step 2: Convert to fraction form
    78,731.92/118,063.66 = 22,559.64/x
  3. Step 3: Cross multiply
    78,731.92x = 118,063.66 × 22,559.64
  4. Step 4: Simplify right side
    78,731.92x = 2,663,473,666.68
  5. Step 5: Solve for x
    x = 2,663,473,666.68/78,731.92
  6. Step 6: Final answer
    x = 33,829.65

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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.