Home / 88,265.72-121,778.70-54,751.16

Finding the Fourth Proportional to 88,265.72, 121,778.70 and 54,751.16

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Solution

The fourth proportional to 88,265.72, 121,778.70 and 54,751.16 is: 75,539.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,265.72 : 121,778.70 = 54,751.16 : x
  2. Step 2: Convert to fraction form
    88,265.72/121,778.70 = 54,751.16/x
  3. Step 3: Cross multiply
    88,265.72x = 121,778.70 × 54,751.16
  4. Step 4: Simplify right side
    88,265.72x = 6,667,525,088.29
  5. Step 5: Solve for x
    x = 6,667,525,088.29/88,265.72
  6. Step 6: Final answer
    x = 75,539.24

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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.