Home / 43,761.60-60,328.80-31,147.20

Finding the Fourth Proportional to 43,761.60, 60,328.80 and 31,147.20

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Solution

The fourth proportional to 43,761.60, 60,328.80 and 31,147.20 is: 42,938.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,761.60 : 60,328.80 = 31,147.20 : x
  2. Step 2: Convert to fraction form
    43,761.60/60,328.80 = 31,147.20/x
  3. Step 3: Cross multiply
    43,761.60x = 60,328.80 × 31,147.20
  4. Step 4: Simplify right side
    43,761.60x = 1,879,073,199.36
  5. Step 5: Solve for x
    x = 1,879,073,199.36/43,761.60
  6. Step 6: Final answer
    x = 42,938.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.