Home / 81,175.20-112,019.64-45,365.52

Finding the Fourth Proportional to 81,175.20, 112,019.64 and 45,365.52

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Solution

The fourth proportional to 81,175.20, 112,019.64 and 45,365.52 is: 62,603.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,175.20 : 112,019.64 = 45,365.52 : x
  2. Step 2: Convert to fraction form
    81,175.20/112,019.64 = 45,365.52/x
  3. Step 3: Cross multiply
    81,175.20x = 112,019.64 × 45,365.52
  4. Step 4: Simplify right side
    81,175.20x = 5,081,829,218.81
  5. Step 5: Solve for x
    x = 5,081,829,218.81/81,175.20
  6. Step 6: Final answer
    x = 62,603.22

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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.