Home / 88,894.32-122,616.36-57,012.72

Finding the Fourth Proportional to 88,894.32, 122,616.36 and 57,012.72

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Solution

The fourth proportional to 88,894.32, 122,616.36 and 57,012.72 is: 78,640.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,894.32 : 122,616.36 = 57,012.72 : x
  2. Step 2: Convert to fraction form
    88,894.32/122,616.36 = 57,012.72/x
  3. Step 3: Cross multiply
    88,894.32x = 122,616.36 × 57,012.72
  4. Step 4: Simplify right side
    88,894.32x = 6,990,692,200.10
  5. Step 5: Solve for x
    x = 6,990,692,200.10/88,894.32
  6. Step 6: Final answer
    x = 78,640.48

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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.