Home / 78,270.13-108,012.78-44,742.61

Finding the Fourth Proportional to 78,270.13, 108,012.78 and 44,742.61

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Solution

The fourth proportional to 78,270.13, 108,012.78 and 44,742.61 is: 61,744.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,270.13 : 108,012.78 = 44,742.61 : x
  2. Step 2: Convert to fraction form
    78,270.13/108,012.78 = 44,742.61/x
  3. Step 3: Cross multiply
    78,270.13x = 108,012.78 × 44,742.61
  4. Step 4: Simplify right side
    78,270.13x = 4,832,772,926.78
  5. Step 5: Solve for x
    x = 4,832,772,926.78/78,270.13
  6. Step 6: Final answer
    x = 61,744.80

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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.