Home / 56,377.78-77,803.74-31,227.28

Finding the Fourth Proportional to 56,377.78, 77,803.74 and 31,227.28

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Solution

The fourth proportional to 56,377.78, 77,803.74 and 31,227.28 is: 43,094.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,377.78 : 77,803.74 = 31,227.28 : x
  2. Step 2: Convert to fraction form
    56,377.78/77,803.74 = 31,227.28/x
  3. Step 3: Cross multiply
    56,377.78x = 77,803.74 × 31,227.28
  4. Step 4: Simplify right side
    56,377.78x = 2,429,599,174.03
  5. Step 5: Solve for x
    x = 2,429,599,174.03/56,377.78
  6. Step 6: Final answer
    x = 43,094.98

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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.