Home / 75,387.51-113,063.99-45,001.23

Finding the Fourth Proportional to 75,387.51, 113,063.99 and 45,001.23

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Solution

The fourth proportional to 75,387.51, 113,063.99 and 45,001.23 is: 67,491.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,387.51 : 113,063.99 = 45,001.23 : x
  2. Step 2: Convert to fraction form
    75,387.51/113,063.99 = 45,001.23/x
  3. Step 3: Cross multiply
    75,387.51x = 113,063.99 × 45,001.23
  4. Step 4: Simplify right side
    75,387.51x = 5,088,018,731.21
  5. Step 5: Solve for x
    x = 5,088,018,731.21/75,387.51
  6. Step 6: Final answer
    x = 67,491.53

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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.