Home / 82,954.40-124,417.20-30,336.80

Finding the Fourth Proportional to 82,954.40, 124,417.20 and 30,336.80

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Solution

The fourth proportional to 82,954.40, 124,417.20 and 30,336.80 is: 45,499.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,954.40 : 124,417.20 = 30,336.80 : x
  2. Step 2: Convert to fraction form
    82,954.40/124,417.20 = 30,336.80/x
  3. Step 3: Cross multiply
    82,954.40x = 124,417.20 × 30,336.80
  4. Step 4: Simplify right side
    82,954.40x = 3,774,419,712.96
  5. Step 5: Solve for x
    x = 3,774,419,712.96/82,954.40
  6. Step 6: Final answer
    x = 45,499.93

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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.