Home / 81,538.13-112,522.82-47,569.97

Finding the Fourth Proportional to 81,538.13, 112,522.82 and 47,569.97

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Solution

The fourth proportional to 81,538.13, 112,522.82 and 47,569.97 is: 65,646.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,538.13 : 112,522.82 = 47,569.97 : x
  2. Step 2: Convert to fraction form
    81,538.13/112,522.82 = 47,569.97/x
  3. Step 3: Cross multiply
    81,538.13x = 112,522.82 × 47,569.97
  4. Step 4: Simplify right side
    81,538.13x = 5,352,706,371.25
  5. Step 5: Solve for x
    x = 5,352,706,371.25/81,538.13
  6. Step 6: Final answer
    x = 65,646.67

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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.