Home / 45,715.86-68,578.65-12,436.47

Finding the Fourth Proportional to 45,715.86, 68,578.65 and 12,436.47

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Solution

The fourth proportional to 45,715.86, 68,578.65 and 12,436.47 is: 18,656.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,715.86 : 68,578.65 = 12,436.47 : x
  2. Step 2: Convert to fraction form
    45,715.86/68,578.65 = 12,436.47/x
  3. Step 3: Cross multiply
    45,715.86x = 68,578.65 × 12,436.47
  4. Step 4: Simplify right side
    45,715.86x = 852,876,323.37
  5. Step 5: Solve for x
    x = 852,876,323.37/45,715.86
  6. Step 6: Final answer
    x = 18,656.03

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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.