Home / 55,935.92-77,189.80-30,785.36

Finding the Fourth Proportional to 55,935.92, 77,189.80 and 30,785.36

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Solution

The fourth proportional to 55,935.92, 77,189.80 and 30,785.36 is: 42,482.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,935.92 : 77,189.80 = 30,785.36 : x
  2. Step 2: Convert to fraction form
    55,935.92/77,189.80 = 30,785.36/x
  3. Step 3: Cross multiply
    55,935.92x = 77,189.80 × 30,785.36
  4. Step 4: Simplify right side
    55,935.92x = 2,376,315,781.33
  5. Step 5: Solve for x
    x = 2,376,315,781.33/55,935.92
  6. Step 6: Final answer
    x = 42,482.82

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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.