Home / 53,612.40-80,418.60-40,306.80

Finding the Fourth Proportional to 53,612.40, 80,418.60 and 40,306.80

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Solution

The fourth proportional to 53,612.40, 80,418.60 and 40,306.80 is: 60,460.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,612.40 : 80,418.60 = 40,306.80 : x
  2. Step 2: Convert to fraction form
    53,612.40/80,418.60 = 40,306.80/x
  3. Step 3: Cross multiply
    53,612.40x = 80,418.60 × 40,306.80
  4. Step 4: Simplify right side
    53,612.40x = 3,241,416,426.48
  5. Step 5: Solve for x
    x = 3,241,416,426.48/53,612.40
  6. Step 6: Final answer
    x = 60,460.20

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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.