Home / 61,001.13-91,484.09-21,018.48

Finding the Fourth Proportional to 61,001.13, 91,484.09 and 21,018.48

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Solution

The fourth proportional to 61,001.13, 91,484.09 and 21,018.48 is: 31,521.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,001.13 : 91,484.09 = 21,018.48 : x
  2. Step 2: Convert to fraction form
    61,001.13/91,484.09 = 21,018.48/x
  3. Step 3: Cross multiply
    61,001.13x = 91,484.09 × 21,018.48
  4. Step 4: Simplify right side
    61,001.13x = 1,922,856,515.98
  5. Step 5: Solve for x
    x = 1,922,856,515.98/61,001.13
  6. Step 6: Final answer
    x = 31,521.65

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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.