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Finding the Fourth Proportional to 77,554.88, 116,332.32 and 21,395.42

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Solution

The fourth proportional to 77,554.88, 116,332.32 and 21,395.42 is: 32,093.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,554.88 : 116,332.32 = 21,395.42 : x
  2. Step 2: Convert to fraction form
    77,554.88/116,332.32 = 21,395.42/x
  3. Step 3: Cross multiply
    77,554.88x = 116,332.32 × 21,395.42
  4. Step 4: Simplify right side
    77,554.88x = 2,488,978,845.97
  5. Step 5: Solve for x
    x = 2,488,978,845.97/77,554.88
  6. Step 6: Final answer
    x = 32,093.13

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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.