Home / 74,719.28-103,072.56-47,832.88

Finding the Fourth Proportional to 74,719.28, 103,072.56 and 47,832.88

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Solution

The fourth proportional to 74,719.28, 103,072.56 and 47,832.88 is: 65,983.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,719.28 : 103,072.56 = 47,832.88 : x
  2. Step 2: Convert to fraction form
    74,719.28/103,072.56 = 47,832.88/x
  3. Step 3: Cross multiply
    74,719.28x = 103,072.56 × 47,832.88
  4. Step 4: Simplify right side
    74,719.28x = 4,930,257,393.77
  5. Step 5: Solve for x
    x = 4,930,257,393.77/74,719.28
  6. Step 6: Final answer
    x = 65,983.74

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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.