Home / 77,785.38-116,678.07-22,381.38

Finding the Fourth Proportional to 77,785.38, 116,678.07 and 22,381.38

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Solution

The fourth proportional to 77,785.38, 116,678.07 and 22,381.38 is: 33,572.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,785.38 : 116,678.07 = 22,381.38 : x
  2. Step 2: Convert to fraction form
    77,785.38/116,678.07 = 22,381.38/x
  3. Step 3: Cross multiply
    77,785.38x = 116,678.07 × 22,381.38
  4. Step 4: Simplify right side
    77,785.38x = 2,611,416,222.34
  5. Step 5: Solve for x
    x = 2,611,416,222.34/77,785.38
  6. Step 6: Final answer
    x = 33,572.07

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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.