Home / 55,849.16-77,072.28-30,698.66

Finding the Fourth Proportional to 55,849.16, 77,072.28 and 30,698.66

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Solution

The fourth proportional to 55,849.16, 77,072.28 and 30,698.66 is: 42,364.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,849.16 : 77,072.28 = 30,698.66 : x
  2. Step 2: Convert to fraction form
    55,849.16/77,072.28 = 30,698.66/x
  3. Step 3: Cross multiply
    55,849.16x = 77,072.28 × 30,698.66
  4. Step 4: Simplify right side
    55,849.16x = 2,366,015,719.14
  5. Step 5: Solve for x
    x = 2,366,015,719.14/55,849.16
  6. Step 6: Final answer
    x = 42,364.39

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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.