Home / 52,119.18-78,216.57-35,439.66

Finding the Fourth Proportional to 52,119.18, 78,216.57 and 35,439.66

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Solution

The fourth proportional to 52,119.18, 78,216.57 and 35,439.66 is: 53,185.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,119.18 : 78,216.57 = 35,439.66 : x
  2. Step 2: Convert to fraction form
    52,119.18/78,216.57 = 35,439.66/x
  3. Step 3: Cross multiply
    52,119.18x = 78,216.57 × 35,439.66
  4. Step 4: Simplify right side
    52,119.18x = 2,771,968,647.17
  5. Step 5: Solve for x
    x = 2,771,968,647.17/52,119.18
  6. Step 6: Final answer
    x = 53,185.19

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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.