Home / 55,935.36-77,189.76-30,784.32

Finding the Fourth Proportional to 55,935.36, 77,189.76 and 30,784.32

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Solution

The fourth proportional to 55,935.36, 77,189.76 and 30,784.32 is: 42,481.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,935.36 : 77,189.76 = 30,784.32 : x
  2. Step 2: Convert to fraction form
    55,935.36/77,189.76 = 30,784.32/x
  3. Step 3: Cross multiply
    55,935.36x = 77,189.76 × 30,784.32
  4. Step 4: Simplify right side
    55,935.36x = 2,376,234,272.56
  5. Step 5: Solve for x
    x = 2,376,234,272.56/55,935.36
  6. Step 6: Final answer
    x = 42,481.79

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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.