Home / 82,715.85-124,124.81-38,334.33

Finding the Fourth Proportional to 82,715.85, 124,124.81 and 38,334.33

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Solution

The fourth proportional to 82,715.85, 124,124.81 and 38,334.33 is: 57,525.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,715.85 : 124,124.81 = 38,334.33 : x
  2. Step 2: Convert to fraction form
    82,715.85/124,124.81 = 38,334.33/x
  3. Step 3: Cross multiply
    82,715.85x = 124,124.81 × 38,334.33
  4. Step 4: Simplify right side
    82,715.85x = 4,758,241,236.06
  5. Step 5: Solve for x
    x = 4,758,241,236.06/82,715.85
  6. Step 6: Final answer
    x = 57,525.14

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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.