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Finding the Fourth Proportional to 79,810.38, 119,715.57 and 27,220.32

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Solution

The fourth proportional to 79,810.38, 119,715.57 and 27,220.32 is: 40,830.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,810.38 : 119,715.57 = 27,220.32 : x
  2. Step 2: Convert to fraction form
    79,810.38/119,715.57 = 27,220.32/x
  3. Step 3: Cross multiply
    79,810.38x = 119,715.57 × 27,220.32
  4. Step 4: Simplify right side
    79,810.38x = 3,258,696,124.38
  5. Step 5: Solve for x
    x = 3,258,696,124.38/79,810.38
  6. Step 6: Final answer
    x = 40,830.48

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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.