Home / 99,475.90-137,272.54-54,152.94

Finding the Fourth Proportional to 99,475.90, 137,272.54 and 54,152.94

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Solution

The fourth proportional to 99,475.90, 137,272.54 and 54,152.94 is: 74,728.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,475.90 : 137,272.54 = 54,152.94 : x
  2. Step 2: Convert to fraction form
    99,475.90/137,272.54 = 54,152.94/x
  3. Step 3: Cross multiply
    99,475.90x = 137,272.54 × 54,152.94
  4. Step 4: Simplify right side
    99,475.90x = 7,433,711,351.50
  5. Step 5: Solve for x
    x = 7,433,711,351.50/99,475.90
  6. Step 6: Final answer
    x = 74,728.77

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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.