Home / 56,412.56-77,851.86-31,260.44

Finding the Fourth Proportional to 56,412.56, 77,851.86 and 31,260.44

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Solution

The fourth proportional to 56,412.56, 77,851.86 and 31,260.44 is: 43,140.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,412.56 : 77,851.86 = 31,260.44 : x
  2. Step 2: Convert to fraction form
    56,412.56/77,851.86 = 31,260.44/x
  3. Step 3: Cross multiply
    56,412.56x = 77,851.86 × 31,260.44
  4. Step 4: Simplify right side
    56,412.56x = 2,433,683,398.42
  5. Step 5: Solve for x
    x = 2,433,683,398.42/56,412.56
  6. Step 6: Final answer
    x = 43,140.81

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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.