Home / 81,333.36-112,243.14-45,039.42

Finding the Fourth Proportional to 81,333.36, 112,243.14 and 45,039.42

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Solution

The fourth proportional to 81,333.36, 112,243.14 and 45,039.42 is: 62,156.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,333.36 : 112,243.14 = 45,039.42 : x
  2. Step 2: Convert to fraction form
    81,333.36/112,243.14 = 45,039.42/x
  3. Step 3: Cross multiply
    81,333.36x = 112,243.14 × 45,039.42
  4. Step 4: Simplify right side
    81,333.36x = 5,055,365,924.58
  5. Step 5: Solve for x
    x = 5,055,365,924.58/81,333.36
  6. Step 6: Final answer
    x = 62,156.12

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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.