Home / 40,121.65-55,354.25-23,125.35

Finding the Fourth Proportional to 40,121.65, 55,354.25 and 23,125.35

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Solution

The fourth proportional to 40,121.65, 55,354.25 and 23,125.35 is: 31,905.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,121.65 : 55,354.25 = 23,125.35 : x
  2. Step 2: Convert to fraction form
    40,121.65/55,354.25 = 23,125.35/x
  3. Step 3: Cross multiply
    40,121.65x = 55,354.25 × 23,125.35
  4. Step 4: Simplify right side
    40,121.65x = 1,280,086,405.24
  5. Step 5: Solve for x
    x = 1,280,086,405.24/40,121.65
  6. Step 6: Final answer
    x = 31,905.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.