Home / 56,951.08-78,578.34-49,385.32

Finding the Fourth Proportional to 56,951.08, 78,578.34 and 49,385.32

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Solution

The fourth proportional to 56,951.08, 78,578.34 and 49,385.32 is: 68,139.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,951.08 : 78,578.34 = 49,385.32 : x
  2. Step 2: Convert to fraction form
    56,951.08/78,578.34 = 49,385.32/x
  3. Step 3: Cross multiply
    56,951.08x = 78,578.34 × 49,385.32
  4. Step 4: Simplify right side
    56,951.08x = 3,880,616,465.97
  5. Step 5: Solve for x
    x = 3,880,616,465.97/56,951.08
  6. Step 6: Final answer
    x = 68,139.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.