Home / 65,215.99-97,815.81-20,839.06

Finding the Fourth Proportional to 65,215.99, 97,815.81 and 20,839.06

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Solution

The fourth proportional to 65,215.99, 97,815.81 and 20,839.06 is: 31,255.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,215.99 : 97,815.81 = 20,839.06 : x
  2. Step 2: Convert to fraction form
    65,215.99/97,815.81 = 20,839.06/x
  3. Step 3: Cross multiply
    65,215.99x = 97,815.81 × 20,839.06
  4. Step 4: Simplify right side
    65,215.99x = 2,038,389,533.54
  5. Step 5: Solve for x
    x = 2,038,389,533.54/65,215.99
  6. Step 6: Final answer
    x = 31,255.98

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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.