Home / 83,811.30-115,666.16-48,012.84

Finding the Fourth Proportional to 83,811.30, 115,666.16 and 48,012.84

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Solution

The fourth proportional to 83,811.30, 115,666.16 and 48,012.84 is: 66,261.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,811.30 : 115,666.16 = 48,012.84 : x
  2. Step 2: Convert to fraction form
    83,811.30/115,666.16 = 48,012.84/x
  3. Step 3: Cross multiply
    83,811.30x = 115,666.16 × 48,012.84
  4. Step 4: Simplify right side
    83,811.30x = 5,553,460,833.49
  5. Step 5: Solve for x
    x = 5,553,460,833.49/83,811.30
  6. Step 6: Final answer
    x = 66,261.48

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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.