Home / 81,572.06-112,569.48-49,747.57

Finding the Fourth Proportional to 81,572.06, 112,569.48 and 49,747.57

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Solution

The fourth proportional to 81,572.06, 112,569.48 and 49,747.57 is: 68,651.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,572.06 : 112,569.48 = 49,747.57 : x
  2. Step 2: Convert to fraction form
    81,572.06/112,569.48 = 49,747.57/x
  3. Step 3: Cross multiply
    81,572.06x = 112,569.48 × 49,747.57
  4. Step 4: Simplify right side
    81,572.06x = 5,600,057,804.74
  5. Step 5: Solve for x
    x = 5,600,057,804.74/81,572.06
  6. Step 6: Final answer
    x = 68,651.66

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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.