Home / 87,769.12-121,121.22-47,482.93

Finding the Fourth Proportional to 87,769.12, 121,121.22 and 47,482.93

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Solution

The fourth proportional to 87,769.12, 121,121.22 and 47,482.93 is: 65,526.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,769.12 : 121,121.22 = 47,482.93 : x
  2. Step 2: Convert to fraction form
    87,769.12/121,121.22 = 47,482.93/x
  3. Step 3: Cross multiply
    87,769.12x = 121,121.22 × 47,482.93
  4. Step 4: Simplify right side
    87,769.12x = 5,751,190,410.77
  5. Step 5: Solve for x
    x = 5,751,190,410.77/87,769.12
  6. Step 6: Final answer
    x = 65,526.35

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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.