Home / 75,415.38-104,088.42-43,579.95

Finding the Fourth Proportional to 75,415.38, 104,088.42 and 43,579.95

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Solution

The fourth proportional to 75,415.38, 104,088.42 and 43,579.95 is: 60,149.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,415.38 : 104,088.42 = 43,579.95 : x
  2. Step 2: Convert to fraction form
    75,415.38/104,088.42 = 43,579.95/x
  3. Step 3: Cross multiply
    75,415.38x = 104,088.42 × 43,579.95
  4. Step 4: Simplify right side
    75,415.38x = 4,536,168,139.18
  5. Step 5: Solve for x
    x = 4,536,168,139.18/75,415.38
  6. Step 6: Final answer
    x = 60,149.11

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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.