Home / 55,340.64-76,279.02-39,213.36

Finding the Fourth Proportional to 55,340.64, 76,279.02 and 39,213.36

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Solution

The fourth proportional to 55,340.64, 76,279.02 and 39,213.36 is: 54,049.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,340.64 : 76,279.02 = 39,213.36 : x
  2. Step 2: Convert to fraction form
    55,340.64/76,279.02 = 39,213.36/x
  3. Step 3: Cross multiply
    55,340.64x = 76,279.02 × 39,213.36
  4. Step 4: Simplify right side
    55,340.64x = 2,991,156,671.71
  5. Step 5: Solve for x
    x = 2,991,156,671.71/55,340.64
  6. Step 6: Final answer
    x = 54,049.91

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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.