Home / 78,366.30-117,599.85-43,331.10

Finding the Fourth Proportional to 78,366.30, 117,599.85 and 43,331.10

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Solution

The fourth proportional to 78,366.30, 117,599.85 and 43,331.10 is: 65,024.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,366.30 : 117,599.85 = 43,331.10 : x
  2. Step 2: Convert to fraction form
    78,366.30/117,599.85 = 43,331.10/x
  3. Step 3: Cross multiply
    78,366.30x = 117,599.85 × 43,331.10
  4. Step 4: Simplify right side
    78,366.30x = 5,095,730,860.34
  5. Step 5: Solve for x
    x = 5,095,730,860.34/78,366.30
  6. Step 6: Final answer
    x = 65,024.52

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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.