Home / 78,677.04-117,884.16-34,237.20

Finding the Fourth Proportional to 78,677.04, 117,884.16 and 34,237.20

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Solution

The fourth proportional to 78,677.04, 117,884.16 and 34,237.20 is: 51,298.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,677.04 : 117,884.16 = 34,237.20 : x
  2. Step 2: Convert to fraction form
    78,677.04/117,884.16 = 34,237.20/x
  3. Step 3: Cross multiply
    78,677.04x = 117,884.16 × 34,237.20
  4. Step 4: Simplify right side
    78,677.04x = 4,036,023,562.75
  5. Step 5: Solve for x
    x = 4,036,023,562.75/78,677.04
  6. Step 6: Final answer
    x = 51,298.62

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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.