Home / 75,426-113,153.57-28,675.23

Finding the Fourth Proportional to 75,426, 113,153.57 and 28,675.23

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Solution

The fourth proportional to 75,426, 113,153.57 and 28,675.23 is: 43,018.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,426 : 113,153.57 = 28,675.23 : x
  2. Step 2: Convert to fraction form
    75,426/113,153.57 = 28,675.23/x
  3. Step 3: Cross multiply
    75,426x = 113,153.57 × 28,675.23
  4. Step 4: Simplify right side
    75,426x = 3,244,704,501.69
  5. Step 5: Solve for x
    x = 3,244,704,501.69/75,426
  6. Step 6: Final answer
    x = 43,018.38

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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.