Home / 87,999.16-121,427.76-50,275.84

Finding the Fourth Proportional to 87,999.16, 121,427.76 and 50,275.84

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Solution

The fourth proportional to 87,999.16, 121,427.76 and 50,275.84 is: 69,374.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,999.16 : 121,427.76 = 50,275.84 : x
  2. Step 2: Convert to fraction form
    87,999.16/121,427.76 = 50,275.84/x
  3. Step 3: Cross multiply
    87,999.16x = 121,427.76 × 50,275.84
  4. Step 4: Simplify right side
    87,999.16x = 6,104,882,633.32
  5. Step 5: Solve for x
    x = 6,104,882,633.32/87,999.16
  6. Step 6: Final answer
    x = 69,374.33

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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.