Home / 65,472.48-90,362.30-38,617.97

Finding the Fourth Proportional to 65,472.48, 90,362.30 and 38,617.97

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Solution

The fourth proportional to 65,472.48, 90,362.30 and 38,617.97 is: 53,298.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,472.48 : 90,362.30 = 38,617.97 : x
  2. Step 2: Convert to fraction form
    65,472.48/90,362.30 = 38,617.97/x
  3. Step 3: Cross multiply
    65,472.48x = 90,362.30 × 38,617.97
  4. Step 4: Simplify right side
    65,472.48x = 3,489,607,945.63
  5. Step 5: Solve for x
    x = 3,489,607,945.63/65,472.48
  6. Step 6: Final answer
    x = 53,298.85

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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.