Home / 81,618.08-112,633.43-45,320.04

Finding the Fourth Proportional to 81,618.08, 112,633.43 and 45,320.04

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Solution

The fourth proportional to 81,618.08, 112,633.43 and 45,320.04 is: 62,541.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,618.08 : 112,633.43 = 45,320.04 : x
  2. Step 2: Convert to fraction form
    81,618.08/112,633.43 = 45,320.04/x
  3. Step 3: Cross multiply
    81,618.08x = 112,633.43 × 45,320.04
  4. Step 4: Simplify right side
    81,618.08x = 5,104,551,552.94
  5. Step 5: Solve for x
    x = 5,104,551,552.94/81,618.08
  6. Step 6: Final answer
    x = 62,541.92

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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.