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Finding the Fourth Proportional to 60,988.88, 91,492.14 and 18,872.48

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Solution

The fourth proportional to 60,988.88, 91,492.14 and 18,872.48 is: 28,311.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,988.88 : 91,492.14 = 18,872.48 : x
  2. Step 2: Convert to fraction form
    60,988.88/91,492.14 = 18,872.48/x
  3. Step 3: Cross multiply
    60,988.88x = 91,492.14 × 18,872.48
  4. Step 4: Simplify right side
    60,988.88x = 1,726,683,582.31
  5. Step 5: Solve for x
    x = 1,726,683,582.31/60,988.88
  6. Step 6: Final answer
    x = 28,311.45

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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.