Home / 56,419.03-77,857.74-30,926.81

Finding the Fourth Proportional to 56,419.03, 77,857.74 and 30,926.81

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Solution

The fourth proportional to 56,419.03, 77,857.74 and 30,926.81 is: 42,678.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,419.03 : 77,857.74 = 30,926.81 : x
  2. Step 2: Convert to fraction form
    56,419.03/77,857.74 = 30,926.81/x
  3. Step 3: Cross multiply
    56,419.03x = 77,857.74 × 30,926.81
  4. Step 4: Simplify right side
    56,419.03x = 2,407,891,726.65
  5. Step 5: Solve for x
    x = 2,407,891,726.65/56,419.03
  6. Step 6: Final answer
    x = 42,678.71

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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.