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Finding the Fourth Proportional to 67,473.57, 101,210.37 and 20,720.37

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Solution

The fourth proportional to 67,473.57, 101,210.37 and 20,720.37 is: 31,080.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,473.57 : 101,210.37 = 20,720.37 : x
  2. Step 2: Convert to fraction form
    67,473.57/101,210.37 = 20,720.37/x
  3. Step 3: Cross multiply
    67,473.57x = 101,210.37 × 20,720.37
  4. Step 4: Simplify right side
    67,473.57x = 2,097,116,314.24
  5. Step 5: Solve for x
    x = 2,097,116,314.24/67,473.57
  6. Step 6: Final answer
    x = 31,080.56

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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.