Home / 90,955.92-136,206-57,575.28

Finding the Fourth Proportional to 90,955.92, 136,206 and 57,575.28

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Solution

The fourth proportional to 90,955.92, 136,206 and 57,575.28 is: 86,218.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,955.92 : 136,206 = 57,575.28 : x
  2. Step 2: Convert to fraction form
    90,955.92/136,206 = 57,575.28/x
  3. Step 3: Cross multiply
    90,955.92x = 136,206 × 57,575.28
  4. Step 4: Simplify right side
    90,955.92x = 7,842,098,587.68
  5. Step 5: Solve for x
    x = 7,842,098,587.68/90,955.92
  6. Step 6: Final answer
    x = 86,218.67

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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.