Home / 79,160.56-118,708.86-28,545.16

Finding the Fourth Proportional to 79,160.56, 118,708.86 and 28,545.16

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Solution

The fourth proportional to 79,160.56, 118,708.86 and 28,545.16 is: 42,806.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,160.56 : 118,708.86 = 28,545.16 : x
  2. Step 2: Convert to fraction form
    79,160.56/118,708.86 = 28,545.16/x
  3. Step 3: Cross multiply
    79,160.56x = 118,708.86 × 28,545.16
  4. Step 4: Simplify right side
    79,160.56x = 3,388,563,402.12
  5. Step 5: Solve for x
    x = 3,388,563,402.12/79,160.56
  6. Step 6: Final answer
    x = 42,806.21

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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.