Home / 67,209.42-100,828.76-20,461.08

Finding the Fourth Proportional to 67,209.42, 100,828.76 and 20,461.08

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Solution

The fourth proportional to 67,209.42, 100,828.76 and 20,461.08 is: 30,696.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,209.42 : 100,828.76 = 20,461.08 : x
  2. Step 2: Convert to fraction form
    67,209.42/100,828.76 = 20,461.08/x
  3. Step 3: Cross multiply
    67,209.42x = 100,828.76 × 20,461.08
  4. Step 4: Simplify right side
    67,209.42x = 2,063,064,844.25
  5. Step 5: Solve for x
    x = 2,063,064,844.25/67,209.42
  6. Step 6: Final answer
    x = 30,696.07

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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.