Home / 74,520.09-111,747.33-39,451.55

Finding the Fourth Proportional to 74,520.09, 111,747.33 and 39,451.55

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Solution

The fourth proportional to 74,520.09, 111,747.33 and 39,451.55 is: 59,159.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,520.09 : 111,747.33 = 39,451.55 : x
  2. Step 2: Convert to fraction form
    74,520.09/111,747.33 = 39,451.55/x
  3. Step 3: Cross multiply
    74,520.09x = 111,747.33 × 39,451.55
  4. Step 4: Simplify right side
    74,520.09x = 4,408,604,818.12
  5. Step 5: Solve for x
    x = 4,408,604,818.12/74,520.09
  6. Step 6: Final answer
    x = 59,159.95

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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.