Home / 91,722.06-137,560-35,542.90

Finding the Fourth Proportional to 91,722.06, 137,560 and 35,542.90

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Solution

The fourth proportional to 91,722.06, 137,560 and 35,542.90 is: 53,305.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,722.06 : 137,560 = 35,542.90 : x
  2. Step 2: Convert to fraction form
    91,722.06/137,560 = 35,542.90/x
  3. Step 3: Cross multiply
    91,722.06x = 137,560 × 35,542.90
  4. Step 4: Simplify right side
    91,722.06x = 4,889,281,324
  5. Step 5: Solve for x
    x = 4,889,281,324/91,722.06
  6. Step 6: Final answer
    x = 53,305.40

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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.