Home / 84,389.43-126,509.64-31,835.82

Finding the Fourth Proportional to 84,389.43, 126,509.64 and 31,835.82

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Solution

The fourth proportional to 84,389.43, 126,509.64 and 31,835.82 is: 47,725.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,389.43 : 126,509.64 = 31,835.82 : x
  2. Step 2: Convert to fraction form
    84,389.43/126,509.64 = 31,835.82/x
  3. Step 3: Cross multiply
    84,389.43x = 126,509.64 × 31,835.82
  4. Step 4: Simplify right side
    84,389.43x = 4,027,537,494.76
  5. Step 5: Solve for x
    x = 4,027,537,494.76/84,389.43
  6. Step 6: Final answer
    x = 47,725.62

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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.