Home / 66,648.08-91,974.44-38,353.20

Finding the Fourth Proportional to 66,648.08, 91,974.44 and 38,353.20

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Solution

The fourth proportional to 66,648.08, 91,974.44 and 38,353.20 is: 52,927.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,648.08 : 91,974.44 = 38,353.20 : x
  2. Step 2: Convert to fraction form
    66,648.08/91,974.44 = 38,353.20/x
  3. Step 3: Cross multiply
    66,648.08x = 91,974.44 × 38,353.20
  4. Step 4: Simplify right side
    66,648.08x = 3,527,514,092.21
  5. Step 5: Solve for x
    x = 3,527,514,092.21/66,648.08
  6. Step 6: Final answer
    x = 52,927.47

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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.