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Finding the Fourth Proportional to 75,499.79, 113,247.10 and 19,340.39

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Solution

The fourth proportional to 75,499.79, 113,247.10 and 19,340.39 is: 29,009.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,499.79 : 113,247.10 = 19,340.39 : x
  2. Step 2: Convert to fraction form
    75,499.79/113,247.10 = 19,340.39/x
  3. Step 3: Cross multiply
    75,499.79x = 113,247.10 × 19,340.39
  4. Step 4: Simplify right side
    75,499.79x = 2,190,243,315.14
  5. Step 5: Solve for x
    x = 2,190,243,315.14/75,499.79
  6. Step 6: Final answer
    x = 29,009.92

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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.