Home / 75,712.19-113,495.99-28,314.43

Finding the Fourth Proportional to 75,712.19, 113,495.99 and 28,314.43

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Solution

The fourth proportional to 75,712.19, 113,495.99 and 28,314.43 is: 42,444.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,712.19 : 113,495.99 = 28,314.43 : x
  2. Step 2: Convert to fraction form
    75,712.19/113,495.99 = 28,314.43/x
  3. Step 3: Cross multiply
    75,712.19x = 113,495.99 × 28,314.43
  4. Step 4: Simplify right side
    75,712.19x = 3,213,573,838.82
  5. Step 5: Solve for x
    x = 3,213,573,838.82/75,712.19
  6. Step 6: Final answer
    x = 42,444.61

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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.