Home / 88,149.54-121,616.33-56,336.79

Finding the Fourth Proportional to 88,149.54, 121,616.33 and 56,336.79

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Solution

The fourth proportional to 88,149.54, 121,616.33 and 56,336.79 is: 77,725.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,149.54 : 121,616.33 = 56,336.79 : x
  2. Step 2: Convert to fraction form
    88,149.54/121,616.33 = 56,336.79/x
  3. Step 3: Cross multiply
    88,149.54x = 121,616.33 × 56,336.79
  4. Step 4: Simplify right side
    88,149.54x = 6,851,473,362.10
  5. Step 5: Solve for x
    x = 6,851,473,362.10/88,149.54
  6. Step 6: Final answer
    x = 77,725.57

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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.