Home / 88,107.04-121,588.64-47,821.15

Finding the Fourth Proportional to 88,107.04, 121,588.64 and 47,821.15

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Solution

The fourth proportional to 88,107.04, 121,588.64 and 47,821.15 is: 65,993.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,107.04 : 121,588.64 = 47,821.15 : x
  2. Step 2: Convert to fraction form
    88,107.04/121,588.64 = 47,821.15/x
  3. Step 3: Cross multiply
    88,107.04x = 121,588.64 × 47,821.15
  4. Step 4: Simplify right side
    88,107.04x = 5,814,508,591.74
  5. Step 5: Solve for x
    x = 5,814,508,591.74/88,107.04
  6. Step 6: Final answer
    x = 65,993.69

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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.