Home / 92,990.19-128,327.04-54,751.17

Finding the Fourth Proportional to 92,990.19, 128,327.04 and 54,751.17

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Solution

The fourth proportional to 92,990.19, 128,327.04 and 54,751.17 is: 75,556.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,990.19 : 128,327.04 = 54,751.17 : x
  2. Step 2: Convert to fraction form
    92,990.19/128,327.04 = 54,751.17/x
  3. Step 3: Cross multiply
    92,990.19x = 128,327.04 × 54,751.17
  4. Step 4: Simplify right side
    92,990.19x = 7,026,055,582.64
  5. Step 5: Solve for x
    x = 7,026,055,582.64/92,990.19
  6. Step 6: Final answer
    x = 75,556.95

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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.