Home / 57,132.44-78,835.38-31,981.94

Finding the Fourth Proportional to 57,132.44, 78,835.38 and 31,981.94

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Solution

The fourth proportional to 57,132.44, 78,835.38 and 31,981.94 is: 44,130.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,132.44 : 78,835.38 = 31,981.94 : x
  2. Step 2: Convert to fraction form
    57,132.44/78,835.38 = 31,981.94/x
  3. Step 3: Cross multiply
    57,132.44x = 78,835.38 × 31,981.94
  4. Step 4: Simplify right side
    57,132.44x = 2,521,308,393.04
  5. Step 5: Solve for x
    x = 2,521,308,393.04/57,132.44
  6. Step 6: Final answer
    x = 44,130.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.