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Finding the Fourth Proportional to 64,088.82, 88,400.97 and 40,194.63

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Solution

The fourth proportional to 64,088.82, 88,400.97 and 40,194.63 is: 55,442.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,088.82 : 88,400.97 = 40,194.63 : x
  2. Step 2: Convert to fraction form
    64,088.82/88,400.97 = 40,194.63/x
  3. Step 3: Cross multiply
    64,088.82x = 88,400.97 × 40,194.63
  4. Step 4: Simplify right side
    64,088.82x = 3,553,244,280.79
  5. Step 5: Solve for x
    x = 3,553,244,280.79/64,088.82
  6. Step 6: Final answer
    x = 55,442.50

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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.