Home / 75,042.77-112,464.92-39,431.32

Finding the Fourth Proportional to 75,042.77, 112,464.92 and 39,431.32

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Solution

The fourth proportional to 75,042.77, 112,464.92 and 39,431.32 is: 59,094.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,042.77 : 112,464.92 = 39,431.32 : x
  2. Step 2: Convert to fraction form
    75,042.77/112,464.92 = 39,431.32/x
  3. Step 3: Cross multiply
    75,042.77x = 112,464.92 × 39,431.32
  4. Step 4: Simplify right side
    75,042.77x = 4,434,640,249.29
  5. Step 5: Solve for x
    x = 4,434,640,249.29/75,042.77
  6. Step 6: Final answer
    x = 59,094.84

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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.