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Finding the Fourth Proportional to 81,349.01, 112,260.53 and 45,539.01

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Solution

The fourth proportional to 81,349.01, 112,260.53 and 45,539.01 is: 62,843.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,349.01 : 112,260.53 = 45,539.01 : x
  2. Step 2: Convert to fraction form
    81,349.01/112,260.53 = 45,539.01/x
  3. Step 3: Cross multiply
    81,349.01x = 112,260.53 × 45,539.01
  4. Step 4: Simplify right side
    81,349.01x = 5,112,233,512.12
  5. Step 5: Solve for x
    x = 5,112,233,512.12/81,349.01
  6. Step 6: Final answer
    x = 62,843.22

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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.