Home / 74,113.60-111,243.30-36,715.90

Finding the Fourth Proportional to 74,113.60, 111,243.30 and 36,715.90

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Solution

The fourth proportional to 74,113.60, 111,243.30 and 36,715.90 is: 55,109.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,113.60 : 111,243.30 = 36,715.90 : x
  2. Step 2: Convert to fraction form
    74,113.60/111,243.30 = 36,715.90/x
  3. Step 3: Cross multiply
    74,113.60x = 111,243.30 × 36,715.90
  4. Step 4: Simplify right side
    74,113.60x = 4,084,397,878.47
  5. Step 5: Solve for x
    x = 4,084,397,878.47/74,113.60
  6. Step 6: Final answer
    x = 55,109.96

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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.