Home / 70,537.68-105,813.33-20,616.66

Finding the Fourth Proportional to 70,537.68, 105,813.33 and 20,616.66

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Solution

The fourth proportional to 70,537.68, 105,813.33 and 20,616.66 is: 30,926.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,537.68 : 105,813.33 = 20,616.66 : x
  2. Step 2: Convert to fraction form
    70,537.68/105,813.33 = 20,616.66/x
  3. Step 3: Cross multiply
    70,537.68x = 105,813.33 × 20,616.66
  4. Step 4: Simplify right side
    70,537.68x = 2,181,517,448.08
  5. Step 5: Solve for x
    x = 2,181,517,448.08/70,537.68
  6. Step 6: Final answer
    x = 30,926.98

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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.