Home / 81,452.02-112,403.63-49,620.92

Finding the Fourth Proportional to 81,452.02, 112,403.63 and 49,620.92

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Solution

The fourth proportional to 81,452.02, 112,403.63 and 49,620.92 is: 68,476.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,452.02 : 112,403.63 = 49,620.92 : x
  2. Step 2: Convert to fraction form
    81,452.02/112,403.63 = 49,620.92/x
  3. Step 3: Cross multiply
    81,452.02x = 112,403.63 × 49,620.92
  4. Step 4: Simplify right side
    81,452.02x = 5,577,571,531.94
  5. Step 5: Solve for x
    x = 5,577,571,531.94/81,452.02
  6. Step 6: Final answer
    x = 68,476.77

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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.