Home / 75,112.48-112,444.24-45,440.64

Finding the Fourth Proportional to 75,112.48, 112,444.24 and 45,440.64

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Solution

The fourth proportional to 75,112.48, 112,444.24 and 45,440.64 is: 68,025.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,112.48 : 112,444.24 = 45,440.64 : x
  2. Step 2: Convert to fraction form
    75,112.48/112,444.24 = 45,440.64/x
  3. Step 3: Cross multiply
    75,112.48x = 112,444.24 × 45,440.64
  4. Step 4: Simplify right side
    75,112.48x = 5,109,538,229.91
  5. Step 5: Solve for x
    x = 5,109,538,229.91/75,112.48
  6. Step 6: Final answer
    x = 68,025.16

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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.