Home / 40,378.40-60,616.20-40,086.80

Finding the Fourth Proportional to 40,378.40, 60,616.20 and 40,086.80

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Solution

The fourth proportional to 40,378.40, 60,616.20 and 40,086.80 is: 60,178.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,378.40 : 60,616.20 = 40,086.80 : x
  2. Step 2: Convert to fraction form
    40,378.40/60,616.20 = 40,086.80/x
  3. Step 3: Cross multiply
    40,378.40x = 60,616.20 × 40,086.80
  4. Step 4: Simplify right side
    40,378.40x = 2,429,909,486.16
  5. Step 5: Solve for x
    x = 2,429,909,486.16/40,378.40
  6. Step 6: Final answer
    x = 60,178.45

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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.