Home / 61,435.20-84,758.40-40,226.56

Finding the Fourth Proportional to 61,435.20, 84,758.40 and 40,226.56

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Solution

The fourth proportional to 61,435.20, 84,758.40 and 40,226.56 is: 55,498.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,435.20 : 84,758.40 = 40,226.56 : x
  2. Step 2: Convert to fraction form
    61,435.20/84,758.40 = 40,226.56/x
  3. Step 3: Cross multiply
    61,435.20x = 84,758.40 × 40,226.56
  4. Step 4: Simplify right side
    61,435.20x = 3,409,538,863.10
  5. Step 5: Solve for x
    x = 3,409,538,863.10/61,435.20
  6. Step 6: Final answer
    x = 55,498.13

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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.