Home / 57,350.23-79,121.21-42,278.66

Finding the Fourth Proportional to 57,350.23, 79,121.21 and 42,278.66

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Solution

The fourth proportional to 57,350.23, 79,121.21 and 42,278.66 is: 58,328.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,350.23 : 79,121.21 = 42,278.66 : x
  2. Step 2: Convert to fraction form
    57,350.23/79,121.21 = 42,278.66/x
  3. Step 3: Cross multiply
    57,350.23x = 79,121.21 × 42,278.66
  4. Step 4: Simplify right side
    57,350.23x = 3,345,138,426.08
  5. Step 5: Solve for x
    x = 3,345,138,426.08/57,350.23
  6. Step 6: Final answer
    x = 58,328.25

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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.