Home / 78,685.76-118,063.52-41,236.93

Finding the Fourth Proportional to 78,685.76, 118,063.52 and 41,236.93

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Solution

The fourth proportional to 78,685.76, 118,063.52 and 41,236.93 is: 61,873.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,685.76 : 118,063.52 = 41,236.93 : x
  2. Step 2: Convert to fraction form
    78,685.76/118,063.52 = 41,236.93/x
  3. Step 3: Cross multiply
    78,685.76x = 118,063.52 × 41,236.93
  4. Step 4: Simplify right side
    78,685.76x = 4,868,577,437.78
  5. Step 5: Solve for x
    x = 4,868,577,437.78/78,685.76
  6. Step 6: Final answer
    x = 61,873.68

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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.