Home / 61,230.72-84,535.20-40,045.44

Finding the Fourth Proportional to 61,230.72, 84,535.20 and 40,045.44

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Solution

The fourth proportional to 61,230.72, 84,535.20 and 40,045.44 is: 55,286.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,230.72 : 84,535.20 = 40,045.44 : x
  2. Step 2: Convert to fraction form
    61,230.72/84,535.20 = 40,045.44/x
  3. Step 3: Cross multiply
    61,230.72x = 84,535.20 × 40,045.44
  4. Step 4: Simplify right side
    61,230.72x = 3,385,249,279.49
  5. Step 5: Solve for x
    x = 3,385,249,279.49/61,230.72
  6. Step 6: Final answer
    x = 55,286.78

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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.