Home / 40,478.80-60,311.21-38,215.25

Finding the Fourth Proportional to 40,478.80, 60,311.21 and 38,215.25

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Solution

The fourth proportional to 40,478.80, 60,311.21 and 38,215.25 is: 56,938.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,478.80 : 60,311.21 = 38,215.25 : x
  2. Step 2: Convert to fraction form
    40,478.80/60,311.21 = 38,215.25/x
  3. Step 3: Cross multiply
    40,478.80x = 60,311.21 × 38,215.25
  4. Step 4: Simplify right side
    40,478.80x = 2,304,807,967.95
  5. Step 5: Solve for x
    x = 2,304,807,967.95/40,478.80
  6. Step 6: Final answer
    x = 56,938.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.