Home / 84,155.63-126,401.58-52,621.79

Finding the Fourth Proportional to 84,155.63, 126,401.58 and 52,621.79

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Solution

The fourth proportional to 84,155.63, 126,401.58 and 52,621.79 is: 79,037.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,155.63 : 126,401.58 = 52,621.79 : x
  2. Step 2: Convert to fraction form
    84,155.63/126,401.58 = 52,621.79/x
  3. Step 3: Cross multiply
    84,155.63x = 126,401.58 × 52,621.79
  4. Step 4: Simplify right side
    84,155.63x = 6,651,476,766.42
  5. Step 5: Solve for x
    x = 6,651,476,766.42/84,155.63
  6. Step 6: Final answer
    x = 79,037.82

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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.