Home / 52,130.32-78,183.48-31,076.30

Finding the Fourth Proportional to 52,130.32, 78,183.48 and 31,076.30

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Solution

The fourth proportional to 52,130.32, 78,183.48 and 31,076.30 is: 46,607.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,130.32 : 78,183.48 = 31,076.30 : x
  2. Step 2: Convert to fraction form
    52,130.32/78,183.48 = 31,076.30/x
  3. Step 3: Cross multiply
    52,130.32x = 78,183.48 × 31,076.30
  4. Step 4: Simplify right side
    52,130.32x = 2,429,653,279.52
  5. Step 5: Solve for x
    x = 2,429,653,279.52/52,130.32
  6. Step 6: Final answer
    x = 46,607.30

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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.