Home / 55,150.68-76,108.38-30,000.12

Finding the Fourth Proportional to 55,150.68, 76,108.38 and 30,000.12

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Solution

The fourth proportional to 55,150.68, 76,108.38 and 30,000.12 is: 41,400.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,150.68 : 76,108.38 = 30,000.12 : x
  2. Step 2: Convert to fraction form
    55,150.68/76,108.38 = 30,000.12/x
  3. Step 3: Cross multiply
    55,150.68x = 76,108.38 × 30,000.12
  4. Step 4: Simplify right side
    55,150.68x = 2,283,260,533.01
  5. Step 5: Solve for x
    x = 2,283,260,533.01/55,150.68
  6. Step 6: Final answer
    x = 41,400.41

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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.