Home / 56,359.75-77,782.13-31,209.25

Finding the Fourth Proportional to 56,359.75, 77,782.13 and 31,209.25

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Solution

The fourth proportional to 56,359.75, 77,782.13 and 31,209.25 is: 43,071.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,359.75 : 77,782.13 = 31,209.25 : x
  2. Step 2: Convert to fraction form
    56,359.75/77,782.13 = 31,209.25/x
  3. Step 3: Cross multiply
    56,359.75x = 77,782.13 × 31,209.25
  4. Step 4: Simplify right side
    56,359.75x = 2,427,521,784.66
  5. Step 5: Solve for x
    x = 2,427,521,784.66/56,359.75
  6. Step 6: Final answer
    x = 43,071.90

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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.