Home / 88,272.58-121,814.72-47,987.36

Finding the Fourth Proportional to 88,272.58, 121,814.72 and 47,987.36

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Solution

The fourth proportional to 88,272.58, 121,814.72 and 47,987.36 is: 66,221.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,272.58 : 121,814.72 = 47,987.36 : x
  2. Step 2: Convert to fraction form
    88,272.58/121,814.72 = 47,987.36/x
  3. Step 3: Cross multiply
    88,272.58x = 121,814.72 × 47,987.36
  4. Step 4: Simplify right side
    88,272.58x = 5,845,566,821.94
  5. Step 5: Solve for x
    x = 5,845,566,821.94/88,272.58
  6. Step 6: Final answer
    x = 66,221.77

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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.