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Finding the Fourth Proportional to 66,670.79, 100,006.29 and 26,707.77

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Solution

The fourth proportional to 66,670.79, 100,006.29 and 26,707.77 is: 40,061.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,670.79 : 100,006.29 = 26,707.77 : x
  2. Step 2: Convert to fraction form
    66,670.79/100,006.29 = 26,707.77/x
  3. Step 3: Cross multiply
    66,670.79x = 100,006.29 × 26,707.77
  4. Step 4: Simplify right side
    66,670.79x = 2,670,944,991.87
  5. Step 5: Solve for x
    x = 2,670,944,991.87/66,670.79
  6. Step 6: Final answer
    x = 40,061.70

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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.