Home / 99,948.33-137,928.69-54,626.31

Finding the Fourth Proportional to 99,948.33, 137,928.69 and 54,626.31

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Solution

The fourth proportional to 99,948.33, 137,928.69 and 54,626.31 is: 75,384.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,948.33 : 137,928.69 = 54,626.31 : x
  2. Step 2: Convert to fraction form
    99,948.33/137,928.69 = 54,626.31/x
  3. Step 3: Cross multiply
    99,948.33x = 137,928.69 × 54,626.31
  4. Step 4: Simplify right side
    99,948.33x = 7,534,534,688.19
  5. Step 5: Solve for x
    x = 7,534,534,688.19/99,948.33
  6. Step 6: Final answer
    x = 75,384.30

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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.