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Finding the Fourth Proportional to 77,402.93, 116,101.97 and 21,998.93

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Solution

The fourth proportional to 77,402.93, 116,101.97 and 21,998.93 is: 32,997.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,402.93 : 116,101.97 = 21,998.93 : x
  2. Step 2: Convert to fraction form
    77,402.93/116,101.97 = 21,998.93/x
  3. Step 3: Cross multiply
    77,402.93x = 116,101.97 × 21,998.93
  4. Step 4: Simplify right side
    77,402.93x = 2,554,119,000.90
  5. Step 5: Solve for x
    x = 2,554,119,000.90/77,402.93
  6. Step 6: Final answer
    x = 32,997.70

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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.