Home / 78,022.04-117,032.45-40,562.78

Finding the Fourth Proportional to 78,022.04, 117,032.45 and 40,562.78

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Solution

The fourth proportional to 78,022.04, 117,032.45 and 40,562.78 is: 60,843.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,022.04 : 117,032.45 = 40,562.78 : x
  2. Step 2: Convert to fraction form
    78,022.04/117,032.45 = 40,562.78/x
  3. Step 3: Cross multiply
    78,022.04x = 117,032.45 × 40,562.78
  4. Step 4: Simplify right side
    78,022.04x = 4,747,160,734.23
  5. Step 5: Solve for x
    x = 4,747,160,734.23/78,022.04
  6. Step 6: Final answer
    x = 60,843.85

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1.5x scale

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.