Home / 75,440.86-104,107.96-40,985.30

Finding the Fourth Proportional to 75,440.86, 104,107.96 and 40,985.30

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Solution

The fourth proportional to 75,440.86, 104,107.96 and 40,985.30 is: 56,559.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,440.86 : 104,107.96 = 40,985.30 : x
  2. Step 2: Convert to fraction form
    75,440.86/104,107.96 = 40,985.30/x
  3. Step 3: Cross multiply
    75,440.86x = 104,107.96 × 40,985.30
  4. Step 4: Simplify right side
    75,440.86x = 4,266,895,972.99
  5. Step 5: Solve for x
    x = 4,266,895,972.99/75,440.86
  6. Step 6: Final answer
    x = 56,559.48

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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.