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Finding the Fourth Proportional to 73,399.68, 110,106.36 and 20,810.16

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Solution

The fourth proportional to 73,399.68, 110,106.36 and 20,810.16 is: 31,217.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,399.68 : 110,106.36 = 20,810.16 : x
  2. Step 2: Convert to fraction form
    73,399.68/110,106.36 = 20,810.16/x
  3. Step 3: Cross multiply
    73,399.68x = 110,106.36 × 20,810.16
  4. Step 4: Simplify right side
    73,399.68x = 2,291,330,968.62
  5. Step 5: Solve for x
    x = 2,291,330,968.62/73,399.68
  6. Step 6: Final answer
    x = 31,217.18

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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.