Home / 56,134.70-77,467.50-30,642.65

Finding the Fourth Proportional to 56,134.70, 77,467.50 and 30,642.65

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Solution

The fourth proportional to 56,134.70, 77,467.50 and 30,642.65 is: 42,287.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,134.70 : 77,467.50 = 30,642.65 : x
  2. Step 2: Convert to fraction form
    56,134.70/77,467.50 = 30,642.65/x
  3. Step 3: Cross multiply
    56,134.70x = 77,467.50 × 30,642.65
  4. Step 4: Simplify right side
    56,134.70x = 2,373,809,682.54
  5. Step 5: Solve for x
    x = 2,373,809,682.54/56,134.70
  6. Step 6: Final answer
    x = 42,287.74

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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.