Home / 90,620.08-136,016.61-55,628.08

Finding the Fourth Proportional to 90,620.08, 136,016.61 and 55,628.08

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Solution

The fourth proportional to 90,620.08, 136,016.61 and 55,628.08 is: 83,495.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,620.08 : 136,016.61 = 55,628.08 : x
  2. Step 2: Convert to fraction form
    90,620.08/136,016.61 = 55,628.08/x
  3. Step 3: Cross multiply
    90,620.08x = 136,016.61 × 55,628.08
  4. Step 4: Simplify right side
    90,620.08x = 7,566,342,862.41
  5. Step 5: Solve for x
    x = 7,566,342,862.41/90,620.08
  6. Step 6: Final answer
    x = 83,495.21

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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.