Home / 87,899.26-121,312.74-49,666.72

Finding the Fourth Proportional to 87,899.26, 121,312.74 and 49,666.72

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Solution

The fourth proportional to 87,899.26, 121,312.74 and 49,666.72 is: 68,546.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,899.26 : 121,312.74 = 49,666.72 : x
  2. Step 2: Convert to fraction form
    87,899.26/121,312.74 = 49,666.72/x
  3. Step 3: Cross multiply
    87,899.26x = 121,312.74 × 49,666.72
  4. Step 4: Simplify right side
    87,899.26x = 6,025,205,890.01
  5. Step 5: Solve for x
    x = 6,025,205,890.01/87,899.26
  6. Step 6: Final answer
    x = 68,546.72

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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.