Home / 75,769.30-113,722.80-38,355.40

Finding the Fourth Proportional to 75,769.30, 113,722.80 and 38,355.40

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Solution

The fourth proportional to 75,769.30, 113,722.80 and 38,355.40 is: 57,567.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,769.30 : 113,722.80 = 38,355.40 : x
  2. Step 2: Convert to fraction form
    75,769.30/113,722.80 = 38,355.40/x
  3. Step 3: Cross multiply
    75,769.30x = 113,722.80 × 38,355.40
  4. Step 4: Simplify right side
    75,769.30x = 4,361,883,483.12
  5. Step 5: Solve for x
    x = 4,361,883,483.12/75,769.30
  6. Step 6: Final answer
    x = 57,567.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.