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Finding the Fourth Proportional to 45,253, 67,881.33 and 21,548.35

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Solution

The fourth proportional to 45,253, 67,881.33 and 21,548.35 is: 32,323.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,253 : 67,881.33 = 21,548.35 : x
  2. Step 2: Convert to fraction form
    45,253/67,881.33 = 21,548.35/x
  3. Step 3: Cross multiply
    45,253x = 67,881.33 × 21,548.35
  4. Step 4: Simplify right side
    45,253x = 1,462,730,657.31
  5. Step 5: Solve for x
    x = 1,462,730,657.31/45,253
  6. Step 6: Final answer
    x = 32,323.40

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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.