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Finding the Fourth Proportional to 47,088, 64,987.20 and 27,216

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Solution

The fourth proportional to 47,088, 64,987.20 and 27,216 is: 37,561.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,088 : 64,987.20 = 27,216 : x
  2. Step 2: Convert to fraction form
    47,088/64,987.20 = 27,216/x
  3. Step 3: Cross multiply
    47,088x = 64,987.20 × 27,216
  4. Step 4: Simplify right side
    47,088x = 1,768,691,635.20
  5. Step 5: Solve for x
    x = 1,768,691,635.20/47,088
  6. Step 6: Final answer
    x = 37,561.41

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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.