Home / 85,839.30-128,745.18-23,495.22

Finding the Fourth Proportional to 85,839.30, 128,745.18 and 23,495.22

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Solution

The fourth proportional to 85,839.30, 128,745.18 and 23,495.22 is: 35,239.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,839.30 : 128,745.18 = 23,495.22 : x
  2. Step 2: Convert to fraction form
    85,839.30/128,745.18 = 23,495.22/x
  3. Step 3: Cross multiply
    85,839.30x = 128,745.18 × 23,495.22
  4. Step 4: Simplify right side
    85,839.30x = 3,024,896,328.04
  5. Step 5: Solve for x
    x = 3,024,896,328.04/85,839.30
  6. Step 6: Final answer
    x = 35,239.06

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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.