Home / 81,030.26-111,827.40-45,227.28

Finding the Fourth Proportional to 81,030.26, 111,827.40 and 45,227.28

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Solution

The fourth proportional to 81,030.26, 111,827.40 and 45,227.28 is: 62,416.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,030.26 : 111,827.40 = 45,227.28 : x
  2. Step 2: Convert to fraction form
    81,030.26/111,827.40 = 45,227.28/x
  3. Step 3: Cross multiply
    81,030.26x = 111,827.40 × 45,227.28
  4. Step 4: Simplify right side
    81,030.26x = 5,057,649,131.47
  5. Step 5: Solve for x
    x = 5,057,649,131.47/81,030.26
  6. Step 6: Final answer
    x = 62,416.80

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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.