Home / 67,222.13-100,833.19-20,475

Finding the Fourth Proportional to 67,222.13, 100,833.19 and 20,475

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Solution

The fourth proportional to 67,222.13, 100,833.19 and 20,475 is: 30,712.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,222.13 : 100,833.19 = 20,475 : x
  2. Step 2: Convert to fraction form
    67,222.13/100,833.19 = 20,475/x
  3. Step 3: Cross multiply
    67,222.13x = 100,833.19 × 20,475
  4. Step 4: Simplify right side
    67,222.13x = 2,064,559,514.06
  5. Step 5: Solve for x
    x = 2,064,559,514.06/67,222.13
  6. Step 6: Final answer
    x = 30,712.50

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1.5x scale

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.