Home / 66,521.86-99,724.11-27,111.94

Finding the Fourth Proportional to 66,521.86, 99,724.11 and 27,111.94

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Solution

The fourth proportional to 66,521.86, 99,724.11 and 27,111.94 is: 40,643.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,521.86 : 99,724.11 = 27,111.94 : x
  2. Step 2: Convert to fraction form
    66,521.86/99,724.11 = 27,111.94/x
  3. Step 3: Cross multiply
    66,521.86x = 99,724.11 × 27,111.94
  4. Step 4: Simplify right side
    66,521.86x = 2,703,714,086.87
  5. Step 5: Solve for x
    x = 2,703,714,086.87/66,521.86
  6. Step 6: Final answer
    x = 40,643.99

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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.