Home / 81,040.47-111,841.46-45,237.45

Finding the Fourth Proportional to 81,040.47, 111,841.46 and 45,237.45

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Solution

The fourth proportional to 81,040.47, 111,841.46 and 45,237.45 is: 62,430.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,040.47 : 111,841.46 = 45,237.45 : x
  2. Step 2: Convert to fraction form
    81,040.47/111,841.46 = 45,237.45/x
  3. Step 3: Cross multiply
    81,040.47x = 111,841.46 × 45,237.45
  4. Step 4: Simplify right side
    81,040.47x = 5,059,422,454.68
  5. Step 5: Solve for x
    x = 5,059,422,454.68/81,040.47
  6. Step 6: Final answer
    x = 62,430.81

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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.