Home / 90,966.30-136,464.03-38,383.53

Finding the Fourth Proportional to 90,966.30, 136,464.03 and 38,383.53

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Solution

The fourth proportional to 90,966.30, 136,464.03 and 38,383.53 is: 57,581.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,966.30 : 136,464.03 = 38,383.53 : x
  2. Step 2: Convert to fraction form
    90,966.30/136,464.03 = 38,383.53/x
  3. Step 3: Cross multiply
    90,966.30x = 136,464.03 × 38,383.53
  4. Step 4: Simplify right side
    90,966.30x = 5,237,971,189.43
  5. Step 5: Solve for x
    x = 5,237,971,189.43/90,966.30
  6. Step 6: Final answer
    x = 57,581.45

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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.