Home / 42,699.73-64,005-14,611.48

Finding the Fourth Proportional to 42,699.73, 64,005 and 14,611.48

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Solution

The fourth proportional to 42,699.73, 64,005 and 14,611.48 is: 21,901.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,699.73 : 64,005 = 14,611.48 : x
  2. Step 2: Convert to fraction form
    42,699.73/64,005 = 14,611.48/x
  3. Step 3: Cross multiply
    42,699.73x = 64,005 × 14,611.48
  4. Step 4: Simplify right side
    42,699.73x = 935,207,777.40
  5. Step 5: Solve for x
    x = 935,207,777.40/42,699.73
  6. Step 6: Final answer
    x = 21,901.96

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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.