Home / 77,986.26-107,594.86-63,621.25

Finding the Fourth Proportional to 77,986.26, 107,594.86 and 63,621.25

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Solution

The fourth proportional to 77,986.26, 107,594.86 and 63,621.25 is: 87,775.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,986.26 : 107,594.86 = 63,621.25 : x
  2. Step 2: Convert to fraction form
    77,986.26/107,594.86 = 63,621.25/x
  3. Step 3: Cross multiply
    77,986.26x = 107,594.86 × 63,621.25
  4. Step 4: Simplify right side
    77,986.26x = 6,845,319,679.96
  5. Step 5: Solve for x
    x = 6,845,319,679.96/77,986.26
  6. Step 6: Final answer
    x = 87,775.98

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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.