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Finding the Fourth Proportional to 67,477.76, 93,122.88 and 39,192.32

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Solution

The fourth proportional to 67,477.76, 93,122.88 and 39,192.32 is: 54,087.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,477.76 : 93,122.88 = 39,192.32 : x
  2. Step 2: Convert to fraction form
    67,477.76/93,122.88 = 39,192.32/x
  3. Step 3: Cross multiply
    67,477.76x = 93,122.88 × 39,192.32
  4. Step 4: Simplify right side
    67,477.76x = 3,649,701,712.28
  5. Step 5: Solve for x
    x = 3,649,701,712.28/67,477.76
  6. Step 6: Final answer
    x = 54,087.48

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1.5x scale

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.