Home / 56,280.11-77,665.46-30,786.17

Finding the Fourth Proportional to 56,280.11, 77,665.46 and 30,786.17

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Solution

The fourth proportional to 56,280.11, 77,665.46 and 30,786.17 is: 42,484.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,280.11 : 77,665.46 = 30,786.17 : x
  2. Step 2: Convert to fraction form
    56,280.11/77,665.46 = 30,786.17/x
  3. Step 3: Cross multiply
    56,280.11x = 77,665.46 × 30,786.17
  4. Step 4: Simplify right side
    56,280.11x = 2,391,021,512.43
  5. Step 5: Solve for x
    x = 2,391,021,512.43/56,280.11
  6. Step 6: Final answer
    x = 42,484.31

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1.5x scale

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.