Home / 88,340.04-121,880.16-54,313.56

Finding the Fourth Proportional to 88,340.04, 121,880.16 and 54,313.56

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Solution

The fourth proportional to 88,340.04, 121,880.16 and 54,313.56 is: 74,934.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,340.04 : 121,880.16 = 54,313.56 : x
  2. Step 2: Convert to fraction form
    88,340.04/121,880.16 = 54,313.56/x
  3. Step 3: Cross multiply
    88,340.04x = 121,880.16 × 54,313.56
  4. Step 4: Simplify right side
    88,340.04x = 6,619,745,382.97
  5. Step 5: Solve for x
    x = 6,619,745,382.97/88,340.04
  6. Step 6: Final answer
    x = 74,934.82

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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.