Home / 67,111.74-100,667.88-20,365.02

Finding the Fourth Proportional to 67,111.74, 100,667.88 and 20,365.02

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Solution

The fourth proportional to 67,111.74, 100,667.88 and 20,365.02 is: 30,547.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,111.74 : 100,667.88 = 20,365.02 : x
  2. Step 2: Convert to fraction form
    67,111.74/100,667.88 = 20,365.02/x
  3. Step 3: Cross multiply
    67,111.74x = 100,667.88 × 20,365.02
  4. Step 4: Simplify right side
    67,111.74x = 2,050,103,389.56
  5. Step 5: Solve for x
    x = 2,050,103,389.56/67,111.74
  6. Step 6: Final answer
    x = 30,547.61

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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.