Home / 76,363.74-105,383.19-42,829.02

Finding the Fourth Proportional to 76,363.74, 105,383.19 and 42,829.02

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Solution

The fourth proportional to 76,363.74, 105,383.19 and 42,829.02 is: 59,104.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,363.74 : 105,383.19 = 42,829.02 : x
  2. Step 2: Convert to fraction form
    76,363.74/105,383.19 = 42,829.02/x
  3. Step 3: Cross multiply
    76,363.74x = 105,383.19 × 42,829.02
  4. Step 4: Simplify right side
    76,363.74x = 4,513,458,752.17
  5. Step 5: Solve for x
    x = 4,513,458,752.17/76,363.74
  6. Step 6: Final answer
    x = 59,104.74

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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.