Home / 99,954.02-137,932.80-54,631.64

Finding the Fourth Proportional to 99,954.02, 137,932.80 and 54,631.64

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Solution

The fourth proportional to 99,954.02, 137,932.80 and 54,631.64 is: 75,389.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,954.02 : 137,932.80 = 54,631.64 : x
  2. Step 2: Convert to fraction form
    99,954.02/137,932.80 = 54,631.64/x
  3. Step 3: Cross multiply
    99,954.02x = 137,932.80 × 54,631.64
  4. Step 4: Simplify right side
    99,954.02x = 7,535,495,073.79
  5. Step 5: Solve for x
    x = 7,535,495,073.79/99,954.02
  6. Step 6: Final answer
    x = 75,389.61

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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.