Home / 74,777.04-112,218.17-67,630.57

Finding the Fourth Proportional to 74,777.04, 112,218.17 and 67,630.57

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Solution

The fourth proportional to 74,777.04, 112,218.17 and 67,630.57 is: 101,493.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,777.04 : 112,218.17 = 67,630.57 : x
  2. Step 2: Convert to fraction form
    74,777.04/112,218.17 = 67,630.57/x
  3. Step 3: Cross multiply
    74,777.04x = 112,218.17 × 67,630.57
  4. Step 4: Simplify right side
    74,777.04x = 7,589,378,801.46
  5. Step 5: Solve for x
    x = 7,589,378,801.46/74,777.04
  6. Step 6: Final answer
    x = 101,493.44

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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.