Home / 87,920.65-121,323.32-51,618.27

Finding the Fourth Proportional to 87,920.65, 121,323.32 and 51,618.27

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Solution

The fourth proportional to 87,920.65, 121,323.32 and 51,618.27 is: 71,229.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,920.65 : 121,323.32 = 51,618.27 : x
  2. Step 2: Convert to fraction form
    87,920.65/121,323.32 = 51,618.27/x
  3. Step 3: Cross multiply
    87,920.65x = 121,323.32 × 51,618.27
  4. Step 4: Simplify right side
    87,920.65x = 6,262,500,279.50
  5. Step 5: Solve for x
    x = 6,262,500,279.50/87,920.65
  6. Step 6: Final answer
    x = 71,229.00

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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.