Home / 102,828.82-141,911-57,511.02

Finding the Fourth Proportional to 102,828.82, 141,911 and 57,511.02

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Solution

The fourth proportional to 102,828.82, 141,911 and 57,511.02 is: 79,369.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,828.82 : 141,911 = 57,511.02 : x
  2. Step 2: Convert to fraction form
    102,828.82/141,911 = 57,511.02/x
  3. Step 3: Cross multiply
    102,828.82x = 141,911 × 57,511.02
  4. Step 4: Simplify right side
    102,828.82x = 8,161,445,649.67
  5. Step 5: Solve for x
    x = 8,161,445,649.67/102,828.82
  6. Step 6: Final answer
    x = 79,369.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.