Home / 78,465.64-117,632.10-34,059.02

Finding the Fourth Proportional to 78,465.64, 117,632.10 and 34,059.02

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Solution

The fourth proportional to 78,465.64, 117,632.10 and 34,059.02 is: 51,059.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,465.64 : 117,632.10 = 34,059.02 : x
  2. Step 2: Convert to fraction form
    78,465.64/117,632.10 = 34,059.02/x
  3. Step 3: Cross multiply
    78,465.64x = 117,632.10 × 34,059.02
  4. Step 4: Simplify right side
    78,465.64x = 4,006,434,046.54
  5. Step 5: Solve for x
    x = 4,006,434,046.54/78,465.64
  6. Step 6: Final answer
    x = 51,059.73

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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.