Home / 75,728.55-104,501.19-45,508.26

Finding the Fourth Proportional to 75,728.55, 104,501.19 and 45,508.26

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Solution

The fourth proportional to 75,728.55, 104,501.19 and 45,508.26 is: 62,798.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,728.55 : 104,501.19 = 45,508.26 : x
  2. Step 2: Convert to fraction form
    75,728.55/104,501.19 = 45,508.26/x
  3. Step 3: Cross multiply
    75,728.55x = 104,501.19 × 45,508.26
  4. Step 4: Simplify right side
    75,728.55x = 4,755,667,324.83
  5. Step 5: Solve for x
    x = 4,755,667,324.83/75,728.55
  6. Step 6: Final answer
    x = 62,798.87

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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.