Home / 42,792.96-64,251.73-30,378.90

Finding the Fourth Proportional to 42,792.96, 64,251.73 and 30,378.90

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Solution

The fourth proportional to 42,792.96, 64,251.73 and 30,378.90 is: 45,612.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,792.96 : 64,251.73 = 30,378.90 : x
  2. Step 2: Convert to fraction form
    42,792.96/64,251.73 = 30,378.90/x
  3. Step 3: Cross multiply
    42,792.96x = 64,251.73 × 30,378.90
  4. Step 4: Simplify right side
    42,792.96x = 1,951,896,798.00
  5. Step 5: Solve for x
    x = 1,951,896,798.00/42,792.96
  6. Step 6: Final answer
    x = 45,612.57

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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.