Home / 57,158.68-78,906.32-38,070.20

Finding the Fourth Proportional to 57,158.68, 78,906.32 and 38,070.20

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Solution

The fourth proportional to 57,158.68, 78,906.32 and 38,070.20 is: 52,555.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,158.68 : 78,906.32 = 38,070.20 : x
  2. Step 2: Convert to fraction form
    57,158.68/78,906.32 = 38,070.20/x
  3. Step 3: Cross multiply
    57,158.68x = 78,906.32 × 38,070.20
  4. Step 4: Simplify right side
    57,158.68x = 3,003,979,383.66
  5. Step 5: Solve for x
    x = 3,003,979,383.66/57,158.68
  6. Step 6: Final answer
    x = 52,555.09

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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.