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Finding the Fourth Proportional to 84,001.86, 126,003 and 57,626.64

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Solution

The fourth proportional to 84,001.86, 126,003 and 57,626.64 is: 86,440.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,001.86 : 126,003 = 57,626.64 : x
  2. Step 2: Convert to fraction form
    84,001.86/126,003 = 57,626.64/x
  3. Step 3: Cross multiply
    84,001.86x = 126,003 × 57,626.64
  4. Step 4: Simplify right side
    84,001.86x = 7,261,129,519.92
  5. Step 5: Solve for x
    x = 7,261,129,519.92/84,001.86
  6. Step 6: Final answer
    x = 86,440.10

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1.5x scale

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.