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Finding the Fourth Proportional to 60,550, 90,839.58 and 18,997

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Solution

The fourth proportional to 60,550, 90,839.58 and 18,997 is: 28,500.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,550 : 90,839.58 = 18,997 : x
  2. Step 2: Convert to fraction form
    60,550/90,839.58 = 18,997/x
  3. Step 3: Cross multiply
    60,550x = 90,839.58 × 18,997
  4. Step 4: Simplify right side
    60,550x = 1,725,679,501.26
  5. Step 5: Solve for x
    x = 1,725,679,501.26/60,550
  6. Step 6: Final answer
    x = 28,500.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.