Home / 56,753.44-78,323.28-31,259.80

Finding the Fourth Proportional to 56,753.44, 78,323.28 and 31,259.80

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Solution

The fourth proportional to 56,753.44, 78,323.28 and 31,259.80 is: 43,140.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,753.44 : 78,323.28 = 31,259.80 : x
  2. Step 2: Convert to fraction form
    56,753.44/78,323.28 = 31,259.80/x
  3. Step 3: Cross multiply
    56,753.44x = 78,323.28 × 31,259.80
  4. Step 4: Simplify right side
    56,753.44x = 2,448,369,676.53
  5. Step 5: Solve for x
    x = 2,448,369,676.53/56,753.44
  6. Step 6: Final answer
    x = 43,140.47

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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.