Home / 42,769.54-64,153.23-11,603.98

Finding the Fourth Proportional to 42,769.54, 64,153.23 and 11,603.98

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Solution

The fourth proportional to 42,769.54, 64,153.23 and 11,603.98 is: 17,405.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,769.54 : 64,153.23 = 11,603.98 : x
  2. Step 2: Convert to fraction form
    42,769.54/64,153.23 = 11,603.98/x
  3. Step 3: Cross multiply
    42,769.54x = 64,153.23 × 11,603.98
  4. Step 4: Simplify right side
    42,769.54x = 744,432,797.86
  5. Step 5: Solve for x
    x = 744,432,797.86/42,769.54
  6. Step 6: Final answer
    x = 17,405.68

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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.