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Finding the Fourth Proportional to 88,281.88, 121,828.89 and 47,995.54

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Solution

The fourth proportional to 88,281.88, 121,828.89 and 47,995.54 is: 66,233.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,281.88 : 121,828.89 = 47,995.54 : x
  2. Step 2: Convert to fraction form
    88,281.88/121,828.89 = 47,995.54/x
  3. Step 3: Cross multiply
    88,281.88x = 121,828.89 × 47,995.54
  4. Step 4: Simplify right side
    88,281.88x = 5,847,243,363.15
  5. Step 5: Solve for x
    x = 5,847,243,363.15/88,281.88
  6. Step 6: Final answer
    x = 66,233.79

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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.