Home / 57,258.81-79,017.36-31,765.68

Finding the Fourth Proportional to 57,258.81, 79,017.36 and 31,765.68

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Solution

The fourth proportional to 57,258.81, 79,017.36 and 31,765.68 is: 43,836.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,258.81 : 79,017.36 = 31,765.68 : x
  2. Step 2: Convert to fraction form
    57,258.81/79,017.36 = 31,765.68/x
  3. Step 3: Cross multiply
    57,258.81x = 79,017.36 × 31,765.68
  4. Step 4: Simplify right side
    57,258.81x = 2,510,040,172.20
  5. Step 5: Solve for x
    x = 2,510,040,172.20/57,258.81
  6. Step 6: Final answer
    x = 43,836.75

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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.