Home / 80,875.09-111,611.06-45,065.13

Finding the Fourth Proportional to 80,875.09, 111,611.06 and 45,065.13

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Solution

The fourth proportional to 80,875.09, 111,611.06 and 45,065.13 is: 62,191.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,875.09 : 111,611.06 = 45,065.13 : x
  2. Step 2: Convert to fraction form
    80,875.09/111,611.06 = 45,065.13/x
  3. Step 3: Cross multiply
    80,875.09x = 111,611.06 × 45,065.13
  4. Step 4: Simplify right side
    80,875.09x = 5,029,766,928.34
  5. Step 5: Solve for x
    x = 5,029,766,928.34/80,875.09
  6. Step 6: Final answer
    x = 62,191.79

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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.