Home / 56,979.46-85,479.52-28,531.25

Finding the Fourth Proportional to 56,979.46, 85,479.52 and 28,531.25

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Solution

The fourth proportional to 56,979.46, 85,479.52 and 28,531.25 is: 42,802.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,979.46 : 85,479.52 = 28,531.25 : x
  2. Step 2: Convert to fraction form
    56,979.46/85,479.52 = 28,531.25/x
  3. Step 3: Cross multiply
    56,979.46x = 85,479.52 × 28,531.25
  4. Step 4: Simplify right side
    56,979.46x = 2,438,837,555
  5. Step 5: Solve for x
    x = 2,438,837,555/56,979.46
  6. Step 6: Final answer
    x = 42,802.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.