Home / 89,783.28-134,657.64-30,610.80

Finding the Fourth Proportional to 89,783.28, 134,657.64 and 30,610.80

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Solution

The fourth proportional to 89,783.28, 134,657.64 and 30,610.80 is: 45,910.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,783.28 : 134,657.64 = 30,610.80 : x
  2. Step 2: Convert to fraction form
    89,783.28/134,657.64 = 30,610.80/x
  3. Step 3: Cross multiply
    89,783.28x = 134,657.64 × 30,610.80
  4. Step 4: Simplify right side
    89,783.28x = 4,121,978,086.51
  5. Step 5: Solve for x
    x = 4,121,978,086.51/89,783.28
  6. Step 6: Final answer
    x = 45,910.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.