Home / 102,411.74-141,328.80-57,092.58

Finding the Fourth Proportional to 102,411.74, 141,328.80 and 57,092.58

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Solution

The fourth proportional to 102,411.74, 141,328.80 and 57,092.58 is: 78,788.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,411.74 : 141,328.80 = 57,092.58 : x
  2. Step 2: Convert to fraction form
    102,411.74/141,328.80 = 57,092.58/x
  3. Step 3: Cross multiply
    102,411.74x = 141,328.80 × 57,092.58
  4. Step 4: Simplify right side
    102,411.74x = 8,068,825,820.30
  5. Step 5: Solve for x
    x = 8,068,825,820.30/102,411.74
  6. Step 6: Final answer
    x = 78,788.09

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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.