Home / 75,443.86-104,112.11-40,988.30

Finding the Fourth Proportional to 75,443.86, 104,112.11 and 40,988.30

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Solution

The fourth proportional to 75,443.86, 104,112.11 and 40,988.30 is: 56,563.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,443.86 : 104,112.11 = 40,988.30 : x
  2. Step 2: Convert to fraction form
    75,443.86/104,112.11 = 40,988.30/x
  3. Step 3: Cross multiply
    75,443.86x = 104,112.11 × 40,988.30
  4. Step 4: Simplify right side
    75,443.86x = 4,267,378,398.31
  5. Step 5: Solve for x
    x = 4,267,378,398.31/75,443.86
  6. Step 6: Final answer
    x = 56,563.63

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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.