Home / 88,273.08-121,815.41-47,987.86

Finding the Fourth Proportional to 88,273.08, 121,815.41 and 47,987.86

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Solution

The fourth proportional to 88,273.08, 121,815.41 and 47,987.86 is: 66,222.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,273.08 : 121,815.41 = 47,987.86 : x
  2. Step 2: Convert to fraction form
    88,273.08/121,815.41 = 47,987.86/x
  3. Step 3: Cross multiply
    88,273.08x = 121,815.41 × 47,987.86
  4. Step 4: Simplify right side
    88,273.08x = 5,845,660,840.92
  5. Step 5: Solve for x
    x = 5,845,660,840.92/88,273.08
  6. Step 6: Final answer
    x = 66,222.46

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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.