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Finding the Fourth Proportional to 81,398.00, 112,330.09 and 45,100.56

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Solution

The fourth proportional to 81,398.00, 112,330.09 and 45,100.56 is: 62,239.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,398.00 : 112,330.09 = 45,100.56 : x
  2. Step 2: Convert to fraction form
    81,398.00/112,330.09 = 45,100.56/x
  3. Step 3: Cross multiply
    81,398.00x = 112,330.09 × 45,100.56
  4. Step 4: Simplify right side
    81,398.00x = 5,066,149,809.61
  5. Step 5: Solve for x
    x = 5,066,149,809.61/81,398.00
  6. Step 6: Final answer
    x = 62,239.24

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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.