Home / 57,449.29-79,257.39-42,378.25

Finding the Fourth Proportional to 57,449.29, 79,257.39 and 42,378.25

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Solution

The fourth proportional to 57,449.29, 79,257.39 and 42,378.25 is: 58,465.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,449.29 : 79,257.39 = 42,378.25 : x
  2. Step 2: Convert to fraction form
    57,449.29/79,257.39 = 42,378.25/x
  3. Step 3: Cross multiply
    57,449.29x = 79,257.39 × 42,378.25
  4. Step 4: Simplify right side
    57,449.29x = 3,358,789,487.77
  5. Step 5: Solve for x
    x = 3,358,789,487.77/57,449.29
  6. Step 6: Final answer
    x = 58,465.29

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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.