Home / 56,421.33-77,859.74-30,927.14

Finding the Fourth Proportional to 56,421.33, 77,859.74 and 30,927.14

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Solution

The fourth proportional to 56,421.33, 77,859.74 and 30,927.14 is: 42,678.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,421.33 : 77,859.74 = 30,927.14 : x
  2. Step 2: Convert to fraction form
    56,421.33/77,859.74 = 30,927.14/x
  3. Step 3: Cross multiply
    56,421.33x = 77,859.74 × 30,927.14
  4. Step 4: Simplify right side
    56,421.33x = 2,407,978,612.73
  5. Step 5: Solve for x
    x = 2,407,978,612.73/56,421.33
  6. Step 6: Final answer
    x = 42,678.52

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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.