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Finding the Fourth Proportional to 73,489, 101,433.19 and 45,178.28

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Solution

The fourth proportional to 73,489, 101,433.19 and 45,178.28 is: 62,357.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,489 : 101,433.19 = 45,178.28 : x
  2. Step 2: Convert to fraction form
    73,489/101,433.19 = 45,178.28/x
  3. Step 3: Cross multiply
    73,489x = 101,433.19 × 45,178.28
  4. Step 4: Simplify right side
    73,489x = 4,582,577,059.11
  5. Step 5: Solve for x
    x = 4,582,577,059.11/73,489
  6. Step 6: Final answer
    x = 62,357.32

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.