Home / 84,409.07-126,550.73-28,215.93

Finding the Fourth Proportional to 84,409.07, 126,550.73 and 28,215.93

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Solution

The fourth proportional to 84,409.07, 126,550.73 and 28,215.93 is: 42,302.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,409.07 : 126,550.73 = 28,215.93 : x
  2. Step 2: Convert to fraction form
    84,409.07/126,550.73 = 28,215.93/x
  3. Step 3: Cross multiply
    84,409.07x = 126,550.73 × 28,215.93
  4. Step 4: Simplify right side
    84,409.07x = 3,570,746,398.05
  5. Step 5: Solve for x
    x = 3,570,746,398.05/84,409.07
  6. Step 6: Final answer
    x = 42,302.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.