Home / 75,881.30-113,890.80-38,467.40

Finding the Fourth Proportional to 75,881.30, 113,890.80 and 38,467.40

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Solution

The fourth proportional to 75,881.30, 113,890.80 and 38,467.40 is: 57,736.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,881.30 : 113,890.80 = 38,467.40 : x
  2. Step 2: Convert to fraction form
    75,881.30/113,890.80 = 38,467.40/x
  3. Step 3: Cross multiply
    75,881.30x = 113,890.80 × 38,467.40
  4. Step 4: Simplify right side
    75,881.30x = 4,381,082,959.92
  5. Step 5: Solve for x
    x = 4,381,082,959.92/75,881.30
  6. Step 6: Final answer
    x = 57,736.00

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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.