Home / 81,030.26-111,822.08-45,221.78

Finding the Fourth Proportional to 81,030.26, 111,822.08 and 45,221.78

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Solution

The fourth proportional to 81,030.26, 111,822.08 and 45,221.78 is: 62,406.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,030.26 : 111,822.08 = 45,221.78 : x
  2. Step 2: Convert to fraction form
    81,030.26/111,822.08 = 45,221.78/x
  3. Step 3: Cross multiply
    81,030.26x = 111,822.08 × 45,221.78
  4. Step 4: Simplify right side
    81,030.26x = 5,056,793,500.90
  5. Step 5: Solve for x
    x = 5,056,793,500.90/81,030.26
  6. Step 6: Final answer
    x = 62,406.24

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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.