Home / 57,400.91-79,214.20-31,560.55

Finding the Fourth Proportional to 57,400.91, 79,214.20 and 31,560.55

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Solution

The fourth proportional to 57,400.91, 79,214.20 and 31,560.55 is: 43,554.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,400.91 : 79,214.20 = 31,560.55 : x
  2. Step 2: Convert to fraction form
    57,400.91/79,214.20 = 31,560.55/x
  3. Step 3: Cross multiply
    57,400.91x = 79,214.20 × 31,560.55
  4. Step 4: Simplify right side
    57,400.91x = 2,500,043,521.77
  5. Step 5: Solve for x
    x = 2,500,043,521.77/57,400.91
  6. Step 6: Final answer
    x = 43,554.08

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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.