Home / 99,438.80-137,224.62-54,116.84

Finding the Fourth Proportional to 99,438.80, 137,224.62 and 54,116.84

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Solution

The fourth proportional to 99,438.80, 137,224.62 and 54,116.84 is: 74,680.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,438.80 : 137,224.62 = 54,116.84 : x
  2. Step 2: Convert to fraction form
    99,438.80/137,224.62 = 54,116.84/x
  3. Step 3: Cross multiply
    99,438.80x = 137,224.62 × 54,116.84
  4. Step 4: Simplify right side
    99,438.80x = 7,426,162,804.60
  5. Step 5: Solve for x
    x = 7,426,162,804.60/99,438.80
  6. Step 6: Final answer
    x = 74,680.74

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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.