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Finding the Fourth Proportional to 73,645.88, 101,638.38 and 45,368.12

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Solution

The fourth proportional to 73,645.88, 101,638.38 and 45,368.12 is: 62,612.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,645.88 : 101,638.38 = 45,368.12 : x
  2. Step 2: Convert to fraction form
    73,645.88/101,638.38 = 45,368.12/x
  3. Step 3: Cross multiply
    73,645.88x = 101,638.38 × 45,368.12
  4. Step 4: Simplify right side
    73,645.88x = 4,611,142,220.45
  5. Step 5: Solve for x
    x = 4,611,142,220.45/73,645.88
  6. Step 6: Final answer
    x = 62,612.36

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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.