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Finding the Fourth Proportional to 81,744.66, 112,810.47 and 45,933.93

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Solution

The fourth proportional to 81,744.66, 112,810.47 and 45,933.93 is: 63,390.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,744.66 : 112,810.47 = 45,933.93 : x
  2. Step 2: Convert to fraction form
    81,744.66/112,810.47 = 45,933.93/x
  3. Step 3: Cross multiply
    81,744.66x = 112,810.47 × 45,933.93
  4. Step 4: Simplify right side
    81,744.66x = 5,181,828,232.25
  5. Step 5: Solve for x
    x = 5,181,828,232.25/81,744.66
  6. Step 6: Final answer
    x = 63,390.42

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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.