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Finding the Fourth Proportional to 72,892.93, 100,626.01 and 51,400.19

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Solution

The fourth proportional to 72,892.93, 100,626.01 and 51,400.19 is: 70,956.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,892.93 : 100,626.01 = 51,400.19 : x
  2. Step 2: Convert to fraction form
    72,892.93/100,626.01 = 51,400.19/x
  3. Step 3: Cross multiply
    72,892.93x = 100,626.01 × 51,400.19
  4. Step 4: Simplify right side
    72,892.93x = 5,172,195,879.11
  5. Step 5: Solve for x
    x = 5,172,195,879.11/72,892.93
  6. Step 6: Final answer
    x = 70,956.07

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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.