Home / 78,161.59-117,253.32-25,560.60

Finding the Fourth Proportional to 78,161.59, 117,253.32 and 25,560.60

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Solution

The fourth proportional to 78,161.59, 117,253.32 and 25,560.60 is: 38,344.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,161.59 : 117,253.32 = 25,560.60 : x
  2. Step 2: Convert to fraction form
    78,161.59/117,253.32 = 25,560.60/x
  3. Step 3: Cross multiply
    78,161.59x = 117,253.32 × 25,560.60
  4. Step 4: Simplify right side
    78,161.59x = 2,997,065,211.19
  5. Step 5: Solve for x
    x = 2,997,065,211.19/78,161.59
  6. Step 6: Final answer
    x = 38,344.48

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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.