Home / 74,715.28-103,067.04-47,828.88

Finding the Fourth Proportional to 74,715.28, 103,067.04 and 47,828.88

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Solution

The fourth proportional to 74,715.28, 103,067.04 and 47,828.88 is: 65,978.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,715.28 : 103,067.04 = 47,828.88 : x
  2. Step 2: Convert to fraction form
    74,715.28/103,067.04 = 47,828.88/x
  3. Step 3: Cross multiply
    74,715.28x = 103,067.04 × 47,828.88
  4. Step 4: Simplify right side
    74,715.28x = 4,929,581,088.12
  5. Step 5: Solve for x
    x = 4,929,581,088.12/74,715.28
  6. Step 6: Final answer
    x = 65,978.22

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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.