Home / 81,364.06-112,334.61-55,862.20

Finding the Fourth Proportional to 81,364.06, 112,334.61 and 55,862.20

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Solution

The fourth proportional to 81,364.06, 112,334.61 and 55,862.20 is: 77,125.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,364.06 : 112,334.61 = 55,862.20 : x
  2. Step 2: Convert to fraction form
    81,364.06/112,334.61 = 55,862.20/x
  3. Step 3: Cross multiply
    81,364.06x = 112,334.61 × 55,862.20
  4. Step 4: Simplify right side
    81,364.06x = 6,275,258,450.74
  5. Step 5: Solve for x
    x = 6,275,258,450.74/81,364.06
  6. Step 6: Final answer
    x = 77,125.68

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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.