Home / 84,651.12-126,865.27-47,228.81

Finding the Fourth Proportional to 84,651.12, 126,865.27 and 47,228.81

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Solution

The fourth proportional to 84,651.12, 126,865.27 and 47,228.81 is: 70,781.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,651.12 : 126,865.27 = 47,228.81 : x
  2. Step 2: Convert to fraction form
    84,651.12/126,865.27 = 47,228.81/x
  3. Step 3: Cross multiply
    84,651.12x = 126,865.27 × 47,228.81
  4. Step 4: Simplify right side
    84,651.12x = 5,991,695,297.19
  5. Step 5: Solve for x
    x = 5,991,695,297.19/84,651.12
  6. Step 6: Final answer
    x = 70,781.06

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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.