Home / 81,390.93-112,320.25-45,093.14

Finding the Fourth Proportional to 81,390.93, 112,320.25 and 45,093.14

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Solution

The fourth proportional to 81,390.93, 112,320.25 and 45,093.14 is: 62,228.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,390.93 : 112,320.25 = 45,093.14 : x
  2. Step 2: Convert to fraction form
    81,390.93/112,320.25 = 45,093.14/x
  3. Step 3: Cross multiply
    81,390.93x = 112,320.25 × 45,093.14
  4. Step 4: Simplify right side
    81,390.93x = 5,064,872,758.60
  5. Step 5: Solve for x
    x = 5,064,872,758.60/81,390.93
  6. Step 6: Final answer
    x = 62,228.96

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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.