Home / 52,132.32-78,186.48-31,078.30

Finding the Fourth Proportional to 52,132.32, 78,186.48 and 31,078.30

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Solution

The fourth proportional to 52,132.32, 78,186.48 and 31,078.30 is: 46,610.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,132.32 : 78,186.48 = 31,078.30 : x
  2. Step 2: Convert to fraction form
    52,132.32/78,186.48 = 31,078.30/x
  3. Step 3: Cross multiply
    52,132.32x = 78,186.48 × 31,078.30
  4. Step 4: Simplify right side
    52,132.32x = 2,429,902,881.38
  5. Step 5: Solve for x
    x = 2,429,902,881.38/52,132.32
  6. Step 6: Final answer
    x = 46,610.30

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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.