Home / 61,631.72-85,049.78-38,983.08

Finding the Fourth Proportional to 61,631.72, 85,049.78 and 38,983.08

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Solution

The fourth proportional to 61,631.72, 85,049.78 and 38,983.08 is: 53,795.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,631.72 : 85,049.78 = 38,983.08 : x
  2. Step 2: Convert to fraction form
    61,631.72/85,049.78 = 38,983.08/x
  3. Step 3: Cross multiply
    61,631.72x = 85,049.78 × 38,983.08
  4. Step 4: Simplify right side
    61,631.72x = 3,315,502,377.72
  5. Step 5: Solve for x
    x = 3,315,502,377.72/61,631.72
  6. Step 6: Final answer
    x = 53,795.39

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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.