Home / 82,956.40-124,420.20-30,338.80

Finding the Fourth Proportional to 82,956.40, 124,420.20 and 30,338.80

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Solution

The fourth proportional to 82,956.40, 124,420.20 and 30,338.80 is: 45,502.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,956.40 : 124,420.20 = 30,338.80 : x
  2. Step 2: Convert to fraction form
    82,956.40/124,420.20 = 30,338.80/x
  3. Step 3: Cross multiply
    82,956.40x = 124,420.20 × 30,338.80
  4. Step 4: Simplify right side
    82,956.40x = 3,774,759,563.76
  5. Step 5: Solve for x
    x = 3,774,759,563.76/82,956.40
  6. Step 6: Final answer
    x = 45,502.93

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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.