Home / 78,287.46-117,283.56-60,671.16

Finding the Fourth Proportional to 78,287.46, 117,283.56 and 60,671.16

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Solution

The fourth proportional to 78,287.46, 117,283.56 and 60,671.16 is: 90,892.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,287.46 : 117,283.56 = 60,671.16 : x
  2. Step 2: Convert to fraction form
    78,287.46/117,283.56 = 60,671.16/x
  3. Step 3: Cross multiply
    78,287.46x = 117,283.56 × 60,671.16
  4. Step 4: Simplify right side
    78,287.46x = 7,115,729,634.13
  5. Step 5: Solve for x
    x = 7,115,729,634.13/78,287.46
  6. Step 6: Final answer
    x = 90,892.33

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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.