Home / 55,439.76-76,479.44-39,310.50

Finding the Fourth Proportional to 55,439.76, 76,479.44 and 39,310.50

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Solution

The fourth proportional to 55,439.76, 76,479.44 and 39,310.50 is: 54,229.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,439.76 : 76,479.44 = 39,310.50 : x
  2. Step 2: Convert to fraction form
    55,439.76/76,479.44 = 39,310.50/x
  3. Step 3: Cross multiply
    55,439.76x = 76,479.44 × 39,310.50
  4. Step 4: Simplify right side
    55,439.76x = 3,006,445,026.12
  5. Step 5: Solve for x
    x = 3,006,445,026.12/55,439.76
  6. Step 6: Final answer
    x = 54,229.04

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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.