Home / 90,621.48-125,061.81-50,335.41

Finding the Fourth Proportional to 90,621.48, 125,061.81 and 50,335.41

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Solution

The fourth proportional to 90,621.48, 125,061.81 and 50,335.41 is: 69,465.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,621.48 : 125,061.81 = 50,335.41 : x
  2. Step 2: Convert to fraction form
    90,621.48/125,061.81 = 50,335.41/x
  3. Step 3: Cross multiply
    90,621.48x = 125,061.81 × 50,335.41
  4. Step 4: Simplify right side
    90,621.48x = 6,295,037,481.69
  5. Step 5: Solve for x
    x = 6,295,037,481.69/90,621.48
  6. Step 6: Final answer
    x = 69,465.18

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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.