Home / 75,811.12-104,619.12-42,277.12

Finding the Fourth Proportional to 75,811.12, 104,619.12 and 42,277.12

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Solution

The fourth proportional to 75,811.12, 104,619.12 and 42,277.12 is: 58,342.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,811.12 : 104,619.12 = 42,277.12 : x
  2. Step 2: Convert to fraction form
    75,811.12/104,619.12 = 42,277.12/x
  3. Step 3: Cross multiply
    75,811.12x = 104,619.12 × 42,277.12
  4. Step 4: Simplify right side
    75,811.12x = 4,422,995,090.53
  5. Step 5: Solve for x
    x = 4,422,995,090.53/75,811.12
  6. Step 6: Final answer
    x = 58,342.30

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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.