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Finding the Fourth Proportional to 40,001.01, 60,001.50 and 11,920.34

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Solution

The fourth proportional to 40,001.01, 60,001.50 and 11,920.34 is: 17,880.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,001.01 : 60,001.50 = 11,920.34 : x
  2. Step 2: Convert to fraction form
    40,001.01/60,001.50 = 11,920.34/x
  3. Step 3: Cross multiply
    40,001.01x = 60,001.50 × 11,920.34
  4. Step 4: Simplify right side
    40,001.01x = 715,237,980.50
  5. Step 5: Solve for x
    x = 715,237,980.50/40,001.01
  6. Step 6: Final answer
    x = 17,880.50

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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.