Home / 61,429.28-84,750.72-40,220.24

Finding the Fourth Proportional to 61,429.28, 84,750.72 and 40,220.24

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Solution

The fourth proportional to 61,429.28, 84,750.72 and 40,220.24 is: 55,489.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,429.28 : 84,750.72 = 40,220.24 : x
  2. Step 2: Convert to fraction form
    61,429.28/84,750.72 = 40,220.24/x
  3. Step 3: Cross multiply
    61,429.28x = 84,750.72 × 40,220.24
  4. Step 4: Simplify right side
    61,429.28x = 3,408,694,298.57
  5. Step 5: Solve for x
    x = 3,408,694,298.57/61,429.28
  6. Step 6: Final answer
    x = 55,489.73

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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.