Home / 57,458.16-79,236.54-38,338.71

Finding the Fourth Proportional to 57,458.16, 79,236.54 and 38,338.71

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Solution

The fourth proportional to 57,458.16, 79,236.54 and 38,338.71 is: 52,870.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,458.16 : 79,236.54 = 38,338.71 : x
  2. Step 2: Convert to fraction form
    57,458.16/79,236.54 = 38,338.71/x
  3. Step 3: Cross multiply
    57,458.16x = 79,236.54 × 38,338.71
  4. Step 4: Simplify right side
    57,458.16x = 3,037,826,728.46
  5. Step 5: Solve for x
    x = 3,037,826,728.46/57,458.16
  6. Step 6: Final answer
    x = 52,870.24

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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.