Home / 56,865.30-78,470.58-31,372.02

Finding the Fourth Proportional to 56,865.30, 78,470.58 and 31,372.02

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Solution

The fourth proportional to 56,865.30, 78,470.58 and 31,372.02 is: 43,291.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,865.30 : 78,470.58 = 31,372.02 : x
  2. Step 2: Convert to fraction form
    56,865.30/78,470.58 = 31,372.02/x
  3. Step 3: Cross multiply
    56,865.30x = 78,470.58 × 31,372.02
  4. Step 4: Simplify right side
    56,865.30x = 2,461,780,605.17
  5. Step 5: Solve for x
    x = 2,461,780,605.17/56,865.30
  6. Step 6: Final answer
    x = 43,291.44

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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.