Home / 80,875.34-111,611.40-45,065.38

Finding the Fourth Proportional to 80,875.34, 111,611.40 and 45,065.38

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Solution

The fourth proportional to 80,875.34, 111,611.40 and 45,065.38 is: 62,192.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,875.34 : 111,611.40 = 45,065.38 : x
  2. Step 2: Convert to fraction form
    80,875.34/111,611.40 = 45,065.38/x
  3. Step 3: Cross multiply
    80,875.34x = 111,611.40 × 45,065.38
  4. Step 4: Simplify right side
    80,875.34x = 5,029,810,153.33
  5. Step 5: Solve for x
    x = 5,029,810,153.33/80,875.34
  6. Step 6: Final answer
    x = 62,192.14

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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.