Home / 82,968.40-124,438.20-30,350.80

Finding the Fourth Proportional to 82,968.40, 124,438.20 and 30,350.80

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Solution

The fourth proportional to 82,968.40, 124,438.20 and 30,350.80 is: 45,520.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,968.40 : 124,438.20 = 30,350.80 : x
  2. Step 2: Convert to fraction form
    82,968.40/124,438.20 = 30,350.80/x
  3. Step 3: Cross multiply
    82,968.40x = 124,438.20 × 30,350.80
  4. Step 4: Simplify right side
    82,968.40x = 3,776,798,920.56
  5. Step 5: Solve for x
    x = 3,776,798,920.56/82,968.40
  6. Step 6: Final answer
    x = 45,520.93

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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.