Home / 61,427.28-84,747.96-40,218.24

Finding the Fourth Proportional to 61,427.28, 84,747.96 and 40,218.24

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Solution

The fourth proportional to 61,427.28, 84,747.96 and 40,218.24 is: 55,486.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,427.28 : 84,747.96 = 40,218.24 : x
  2. Step 2: Convert to fraction form
    61,427.28/84,747.96 = 40,218.24/x
  3. Step 3: Cross multiply
    61,427.28x = 84,747.96 × 40,218.24
  4. Step 4: Simplify right side
    61,427.28x = 3,408,413,794.79
  5. Step 5: Solve for x
    x = 3,408,413,794.79/61,427.28
  6. Step 6: Final answer
    x = 55,486.97

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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.