Home / 81,512.32-112,481.37-45,210.34

Finding the Fourth Proportional to 81,512.32, 112,481.37 and 45,210.34

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Solution

The fourth proportional to 81,512.32, 112,481.37 and 45,210.34 is: 62,387.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,512.32 : 112,481.37 = 45,210.34 : x
  2. Step 2: Convert to fraction form
    81,512.32/112,481.37 = 45,210.34/x
  3. Step 3: Cross multiply
    81,512.32x = 112,481.37 × 45,210.34
  4. Step 4: Simplify right side
    81,512.32x = 5,085,320,981.37
  5. Step 5: Solve for x
    x = 5,085,320,981.37/81,512.32
  6. Step 6: Final answer
    x = 62,387.15

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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.