Home / 56,477.07-77,939.39-30,984.75

Finding the Fourth Proportional to 56,477.07, 77,939.39 and 30,984.75

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Solution

The fourth proportional to 56,477.07, 77,939.39 and 30,984.75 is: 42,759.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,477.07 : 77,939.39 = 30,984.75 : x
  2. Step 2: Convert to fraction form
    56,477.07/77,939.39 = 30,984.75/x
  3. Step 3: Cross multiply
    56,477.07x = 77,939.39 × 30,984.75
  4. Step 4: Simplify right side
    56,477.07x = 2,414,932,591.76
  5. Step 5: Solve for x
    x = 2,414,932,591.76/56,477.07
  6. Step 6: Final answer
    x = 42,759.52

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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.