Home / 74,641.50-111,961.55-30,257.71

Finding the Fourth Proportional to 74,641.50, 111,961.55 and 30,257.71

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Solution

The fourth proportional to 74,641.50, 111,961.55 and 30,257.71 is: 45,386.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,641.50 : 111,961.55 = 30,257.71 : x
  2. Step 2: Convert to fraction form
    74,641.50/111,961.55 = 30,257.71/x
  3. Step 3: Cross multiply
    74,641.50x = 111,961.55 × 30,257.71
  4. Step 4: Simplify right side
    74,641.50x = 3,387,699,906.79
  5. Step 5: Solve for x
    x = 3,387,699,906.79/74,641.50
  6. Step 6: Final answer
    x = 45,386.28

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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.