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Finding the Fourth Proportional to 88,405.71, 122,002.53 and 54,433.80

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Solution

The fourth proportional to 88,405.71, 122,002.53 and 54,433.80 is: 75,120.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,405.71 : 122,002.53 = 54,433.80 : x
  2. Step 2: Convert to fraction form
    88,405.71/122,002.53 = 54,433.80/x
  3. Step 3: Cross multiply
    88,405.71x = 122,002.53 × 54,433.80
  4. Step 4: Simplify right side
    88,405.71x = 6,641,061,317.51
  5. Step 5: Solve for x
    x = 6,641,061,317.51/88,405.71
  6. Step 6: Final answer
    x = 75,120.28

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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.