Home / 42,773.15-64,159.76-11,608.40

Finding the Fourth Proportional to 42,773.15, 64,159.76 and 11,608.40

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Solution

The fourth proportional to 42,773.15, 64,159.76 and 11,608.40 is: 17,412.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,773.15 : 64,159.76 = 11,608.40 : x
  2. Step 2: Convert to fraction form
    42,773.15/64,159.76 = 11,608.40/x
  3. Step 3: Cross multiply
    42,773.15x = 64,159.76 × 11,608.40
  4. Step 4: Simplify right side
    42,773.15x = 744,792,347.40
  5. Step 5: Solve for x
    x = 744,792,347.40/42,773.15
  6. Step 6: Final answer
    x = 17,412.61

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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.