Home / 45,129.17-67,695.32-21,424.50

Finding the Fourth Proportional to 45,129.17, 67,695.32 and 21,424.50

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Solution

The fourth proportional to 45,129.17, 67,695.32 and 21,424.50 is: 32,137.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,129.17 : 67,695.32 = 21,424.50 : x
  2. Step 2: Convert to fraction form
    45,129.17/67,695.32 = 21,424.50/x
  3. Step 3: Cross multiply
    45,129.17x = 67,695.32 × 21,424.50
  4. Step 4: Simplify right side
    45,129.17x = 1,450,338,436.90
  5. Step 5: Solve for x
    x = 1,450,338,436.90/45,129.17
  6. Step 6: Final answer
    x = 32,137.49

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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.