Home / 77,398.19-116,089.51-21,243.95

Finding the Fourth Proportional to 77,398.19, 116,089.51 and 21,243.95

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Solution

The fourth proportional to 77,398.19, 116,089.51 and 21,243.95 is: 31,863.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,398.19 : 116,089.51 = 21,243.95 : x
  2. Step 2: Convert to fraction form
    77,398.19/116,089.51 = 21,243.95/x
  3. Step 3: Cross multiply
    77,398.19x = 116,089.51 × 21,243.95
  4. Step 4: Simplify right side
    77,398.19x = 2,466,199,745.96
  5. Step 5: Solve for x
    x = 2,466,199,745.96/77,398.19
  6. Step 6: Final answer
    x = 31,863.79

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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.