Home / 65,511.05-90,405.32-37,222.20

Finding the Fourth Proportional to 65,511.05, 90,405.32 and 37,222.20

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Solution

The fourth proportional to 65,511.05, 90,405.32 and 37,222.20 is: 51,366.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,511.05 : 90,405.32 = 37,222.20 : x
  2. Step 2: Convert to fraction form
    65,511.05/90,405.32 = 37,222.20/x
  3. Step 3: Cross multiply
    65,511.05x = 90,405.32 × 37,222.20
  4. Step 4: Simplify right side
    65,511.05x = 3,365,084,715.99
  5. Step 5: Solve for x
    x = 3,365,084,715.99/65,511.05
  6. Step 6: Final answer
    x = 51,366.68

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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.