Home / 88,220.69-121,745.05-47,934.78

Finding the Fourth Proportional to 88,220.69, 121,745.05 and 47,934.78

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Solution

The fourth proportional to 88,220.69, 121,745.05 and 47,934.78 is: 66,150.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,220.69 : 121,745.05 = 47,934.78 : x
  2. Step 2: Convert to fraction form
    88,220.69/121,745.05 = 47,934.78/x
  3. Step 3: Cross multiply
    88,220.69x = 121,745.05 × 47,934.78
  4. Step 4: Simplify right side
    88,220.69x = 5,835,822,187.84
  5. Step 5: Solve for x
    x = 5,835,822,187.84/88,220.69
  6. Step 6: Final answer
    x = 66,150.27

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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.