Home / 56,478.52-77,940.44-31,328.02

Finding the Fourth Proportional to 56,478.52, 77,940.44 and 31,328.02

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Solution

The fourth proportional to 56,478.52, 77,940.44 and 31,328.02 is: 43,232.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,478.52 : 77,940.44 = 31,328.02 : x
  2. Step 2: Convert to fraction form
    56,478.52/77,940.44 = 31,328.02/x
  3. Step 3: Cross multiply
    56,478.52x = 77,940.44 × 31,328.02
  4. Step 4: Simplify right side
    56,478.52x = 2,441,719,663.13
  5. Step 5: Solve for x
    x = 2,441,719,663.13/56,478.52
  6. Step 6: Final answer
    x = 43,232.71

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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.