Home / 88,105.36-121,585.51-47,819.11

Finding the Fourth Proportional to 88,105.36, 121,585.51 and 47,819.11

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Solution

The fourth proportional to 88,105.36, 121,585.51 and 47,819.11 is: 65,990.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,105.36 : 121,585.51 = 47,819.11 : x
  2. Step 2: Convert to fraction form
    88,105.36/121,585.51 = 47,819.11/x
  3. Step 3: Cross multiply
    88,105.36x = 121,585.51 × 47,819.11
  4. Step 4: Simplify right side
    88,105.36x = 5,814,110,941.96
  5. Step 5: Solve for x
    x = 5,814,110,941.96/88,105.36
  6. Step 6: Final answer
    x = 65,990.44

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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.