Home / 88,141.78-121,636.92-47,855.62

Finding the Fourth Proportional to 88,141.78, 121,636.92 and 47,855.62

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Solution

The fourth proportional to 88,141.78, 121,636.92 and 47,855.62 is: 66,041.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,141.78 : 121,636.92 = 47,855.62 : x
  2. Step 2: Convert to fraction form
    88,141.78/121,636.92 = 47,855.62/x
  3. Step 3: Cross multiply
    88,141.78x = 121,636.92 × 47,855.62
  4. Step 4: Simplify right side
    88,141.78x = 5,821,010,221.49
  5. Step 5: Solve for x
    x = 5,821,010,221.49/88,141.78
  6. Step 6: Final answer
    x = 66,041.44

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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.