Home / 78,268.16-117,254.61-60,651.87

Finding the Fourth Proportional to 78,268.16, 117,254.61 and 60,651.87

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Solution

The fourth proportional to 78,268.16, 117,254.61 and 60,651.87 is: 90,863.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,268.16 : 117,254.61 = 60,651.87 : x
  2. Step 2: Convert to fraction form
    78,268.16/117,254.61 = 60,651.87/x
  3. Step 3: Cross multiply
    78,268.16x = 117,254.61 × 60,651.87
  4. Step 4: Simplify right side
    78,268.16x = 7,111,711,362.62
  5. Step 5: Solve for x
    x = 7,111,711,362.62/78,268.16
  6. Step 6: Final answer
    x = 90,863.41

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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.