Home / 88,103.51-121,582.97-47,817.28

Finding the Fourth Proportional to 88,103.51, 121,582.97 and 47,817.28

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Solution

The fourth proportional to 88,103.51, 121,582.97 and 47,817.28 is: 65,987.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,103.51 : 121,582.97 = 47,817.28 : x
  2. Step 2: Convert to fraction form
    88,103.51/121,582.97 = 47,817.28/x
  3. Step 3: Cross multiply
    88,103.51x = 121,582.97 × 47,817.28
  4. Step 4: Simplify right side
    88,103.51x = 5,813,766,328.02
  5. Step 5: Solve for x
    x = 5,813,766,328.02/88,103.51
  6. Step 6: Final answer
    x = 65,987.90

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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.