Home / 56,171.66-77,517.02-30,678.22

Finding the Fourth Proportional to 56,171.66, 77,517.02 and 30,678.22

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Solution

The fourth proportional to 56,171.66, 77,517.02 and 30,678.22 is: 42,336.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,171.66 : 77,517.02 = 30,678.22 : x
  2. Step 2: Convert to fraction form
    56,171.66/77,517.02 = 30,678.22/x
  3. Step 3: Cross multiply
    56,171.66x = 77,517.02 × 30,678.22
  4. Step 4: Simplify right side
    56,171.66x = 2,378,084,366.90
  5. Step 5: Solve for x
    x = 2,378,084,366.90/56,171.66
  6. Step 6: Final answer
    x = 42,336.02

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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.