Home / 91,095.45-136,610.37-38,509.02

Finding the Fourth Proportional to 91,095.45, 136,610.37 and 38,509.02

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Solution

The fourth proportional to 91,095.45, 136,610.37 and 38,509.02 is: 57,749.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,095.45 : 136,610.37 = 38,509.02 : x
  2. Step 2: Convert to fraction form
    91,095.45/136,610.37 = 38,509.02/x
  3. Step 3: Cross multiply
    91,095.45x = 136,610.37 × 38,509.02
  4. Step 4: Simplify right side
    91,095.45x = 5,260,731,470.54
  5. Step 5: Solve for x
    x = 5,260,731,470.54/91,095.45
  6. Step 6: Final answer
    x = 57,749.66

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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.