Home / 81,269.33-112,149.36-47,288.21

Finding the Fourth Proportional to 81,269.33, 112,149.36 and 47,288.21

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Solution

The fourth proportional to 81,269.33, 112,149.36 and 47,288.21 is: 65,256.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,269.33 : 112,149.36 = 47,288.21 : x
  2. Step 2: Convert to fraction form
    81,269.33/112,149.36 = 47,288.21/x
  3. Step 3: Cross multiply
    81,269.33x = 112,149.36 × 47,288.21
  4. Step 4: Simplify right side
    81,269.33x = 5,303,341,926.30
  5. Step 5: Solve for x
    x = 5,303,341,926.30/81,269.33
  6. Step 6: Final answer
    x = 65,256.38

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1.5x scale

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.