Home / 57,995.85-86,969.17-20,565.35

Finding the Fourth Proportional to 57,995.85, 86,969.17 and 20,565.35

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Solution

The fourth proportional to 57,995.85, 86,969.17 and 20,565.35 is: 30,839.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,995.85 : 86,969.17 = 20,565.35 : x
  2. Step 2: Convert to fraction form
    57,995.85/86,969.17 = 20,565.35/x
  3. Step 3: Cross multiply
    57,995.85x = 86,969.17 × 20,565.35
  4. Step 4: Simplify right side
    57,995.85x = 1,788,551,420.26
  5. Step 5: Solve for x
    x = 1,788,551,420.26/57,995.85
  6. Step 6: Final answer
    x = 30,839.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.