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Finding the Fourth Proportional to 99,532.69, 137,355.11 and 54,820.69

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Solution

The fourth proportional to 99,532.69, 137,355.11 and 54,820.69 is: 75,652.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,532.69 : 137,355.11 = 54,820.69 : x
  2. Step 2: Convert to fraction form
    99,532.69/137,355.11 = 54,820.69/x
  3. Step 3: Cross multiply
    99,532.69x = 137,355.11 × 54,820.69
  4. Step 4: Simplify right side
    99,532.69x = 7,529,901,905.23
  5. Step 5: Solve for x
    x = 7,529,901,905.23/99,532.69
  6. Step 6: Final answer
    x = 75,652.55

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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.