Home / 81,055.74-111,865.35-45,258.06

Finding the Fourth Proportional to 81,055.74, 111,865.35 and 45,258.06

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Solution

The fourth proportional to 81,055.74, 111,865.35 and 45,258.06 is: 62,460.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,055.74 : 111,865.35 = 45,258.06 : x
  2. Step 2: Convert to fraction form
    81,055.74/111,865.35 = 45,258.06/x
  3. Step 3: Cross multiply
    81,055.74x = 111,865.35 × 45,258.06
  4. Step 4: Simplify right side
    81,055.74x = 5,062,808,722.22
  5. Step 5: Solve for x
    x = 5,062,808,722.22/81,055.74
  6. Step 6: Final answer
    x = 62,460.83

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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.