Home / 84,621.05-126,898.77-45,156.63

Finding the Fourth Proportional to 84,621.05, 126,898.77 and 45,156.63

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Solution

The fourth proportional to 84,621.05, 126,898.77 and 45,156.63 is: 67,717.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,621.05 : 126,898.77 = 45,156.63 : x
  2. Step 2: Convert to fraction form
    84,621.05/126,898.77 = 45,156.63/x
  3. Step 3: Cross multiply
    84,621.05x = 126,898.77 × 45,156.63
  4. Step 4: Simplify right side
    84,621.05x = 5,730,320,804.35
  5. Step 5: Solve for x
    x = 5,730,320,804.35/84,621.05
  6. Step 6: Final answer
    x = 67,717.44

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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.