Home / 74,711.16-112,074.96-30,331.48

Finding the Fourth Proportional to 74,711.16, 112,074.96 and 30,331.48

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Solution

The fourth proportional to 74,711.16, 112,074.96 and 30,331.48 is: 45,500.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,711.16 : 112,074.96 = 30,331.48 : x
  2. Step 2: Convert to fraction form
    74,711.16/112,074.96 = 30,331.48/x
  3. Step 3: Cross multiply
    74,711.16x = 112,074.96 × 30,331.48
  4. Step 4: Simplify right side
    74,711.16x = 3,399,399,407.74
  5. Step 5: Solve for x
    x = 3,399,399,407.74/74,711.16
  6. Step 6: Final answer
    x = 45,500.56

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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.