Home / 77,488.72-116,194.78-27,561.40

Finding the Fourth Proportional to 77,488.72, 116,194.78 and 27,561.40

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Solution

The fourth proportional to 77,488.72, 116,194.78 and 27,561.40 is: 41,328.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,488.72 : 116,194.78 = 27,561.40 : x
  2. Step 2: Convert to fraction form
    77,488.72/116,194.78 = 27,561.40/x
  3. Step 3: Cross multiply
    77,488.72x = 116,194.78 × 27,561.40
  4. Step 4: Simplify right side
    77,488.72x = 3,202,490,809.49
  5. Step 5: Solve for x
    x = 3,202,490,809.49/77,488.72
  6. Step 6: Final answer
    x = 41,328.48

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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.