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Finding the Fourth Proportional to 57,357.68, 79,145.52 and 31,862.12

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Solution

The fourth proportional to 57,357.68, 79,145.52 and 31,862.12 is: 43,965.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,357.68 : 79,145.52 = 31,862.12 : x
  2. Step 2: Convert to fraction form
    57,357.68/79,145.52 = 31,862.12/x
  3. Step 3: Cross multiply
    57,357.68x = 79,145.52 × 31,862.12
  4. Step 4: Simplify right side
    57,357.68x = 2,521,744,055.70
  5. Step 5: Solve for x
    x = 2,521,744,055.70/57,357.68
  6. Step 6: Final answer
    x = 43,965.24

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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.