Home / 75,435.08-104,100.02-40,979.56

Finding the Fourth Proportional to 75,435.08, 104,100.02 and 40,979.56

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Solution

The fourth proportional to 75,435.08, 104,100.02 and 40,979.56 is: 56,551.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,435.08 : 104,100.02 = 40,979.56 : x
  2. Step 2: Convert to fraction form
    75,435.08/104,100.02 = 40,979.56/x
  3. Step 3: Cross multiply
    75,435.08x = 104,100.02 × 40,979.56
  4. Step 4: Simplify right side
    75,435.08x = 4,265,973,015.59
  5. Step 5: Solve for x
    x = 4,265,973,015.59/75,435.08
  6. Step 6: Final answer
    x = 56,551.58

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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.