Home / 77,721.68-116,553.90-27,788.24

Finding the Fourth Proportional to 77,721.68, 116,553.90 and 27,788.24

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Solution

The fourth proportional to 77,721.68, 116,553.90 and 27,788.24 is: 41,672.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,721.68 : 116,553.90 = 27,788.24 : x
  2. Step 2: Convert to fraction form
    77,721.68/116,553.90 = 27,788.24/x
  3. Step 3: Cross multiply
    77,721.68x = 116,553.90 × 27,788.24
  4. Step 4: Simplify right side
    77,721.68x = 3,238,827,746.14
  5. Step 5: Solve for x
    x = 3,238,827,746.14/77,721.68
  6. Step 6: Final answer
    x = 41,672.13

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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.