Home / 57,306.32-85,876.40-40,698.88

Finding the Fourth Proportional to 57,306.32, 85,876.40 and 40,698.88

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Solution

The fourth proportional to 57,306.32, 85,876.40 and 40,698.88 is: 60,989.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,306.32 : 85,876.40 = 40,698.88 : x
  2. Step 2: Convert to fraction form
    57,306.32/85,876.40 = 40,698.88/x
  3. Step 3: Cross multiply
    57,306.32x = 85,876.40 × 40,698.88
  4. Step 4: Simplify right side
    57,306.32x = 3,495,073,298.43
  5. Step 5: Solve for x
    x = 3,495,073,298.43/57,306.32
  6. Step 6: Final answer
    x = 60,989.32

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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.