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Finding the Fourth Proportional to 81,174.87, 112,019.22 and 45,365.18

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Solution

The fourth proportional to 81,174.87, 112,019.22 and 45,365.18 is: 62,602.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,174.87 : 112,019.22 = 45,365.18 : x
  2. Step 2: Convert to fraction form
    81,174.87/112,019.22 = 45,365.18/x
  3. Step 3: Cross multiply
    81,174.87x = 112,019.22 × 45,365.18
  4. Step 4: Simplify right side
    81,174.87x = 5,081,771,518.66
  5. Step 5: Solve for x
    x = 5,081,771,518.66/81,174.87
  6. Step 6: Final answer
    x = 62,602.77

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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.