Home / 77,916.68-116,809.36-31,144.04

Finding the Fourth Proportional to 77,916.68, 116,809.36 and 31,144.04

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Solution

The fourth proportional to 77,916.68, 116,809.36 and 31,144.04 is: 46,689.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,916.68 : 116,809.36 = 31,144.04 : x
  2. Step 2: Convert to fraction form
    77,916.68/116,809.36 = 31,144.04/x
  3. Step 3: Cross multiply
    77,916.68x = 116,809.36 × 31,144.04
  4. Step 4: Simplify right side
    77,916.68x = 3,637,915,380.21
  5. Step 5: Solve for x
    x = 3,637,915,380.21/77,916.68
  6. Step 6: Final answer
    x = 46,689.82

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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.