Home / 84,002.86-126,004.29-21,668.50

Finding the Fourth Proportional to 84,002.86, 126,004.29 and 21,668.50

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Solution

The fourth proportional to 84,002.86, 126,004.29 and 21,668.50 is: 32,502.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,002.86 : 126,004.29 = 21,668.50 : x
  2. Step 2: Convert to fraction form
    84,002.86/126,004.29 = 21,668.50/x
  3. Step 3: Cross multiply
    84,002.86x = 126,004.29 × 21,668.50
  4. Step 4: Simplify right side
    84,002.86x = 2,730,323,957.87
  5. Step 5: Solve for x
    x = 2,730,323,957.87/84,002.86
  6. Step 6: Final answer
    x = 32,502.75

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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.