Home / 56,721.64-85,033.23-28,618.02

Finding the Fourth Proportional to 56,721.64, 85,033.23 and 28,618.02

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Solution

The fourth proportional to 56,721.64, 85,033.23 and 28,618.02 is: 42,902.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,721.64 : 85,033.23 = 28,618.02 : x
  2. Step 2: Convert to fraction form
    56,721.64/85,033.23 = 28,618.02/x
  3. Step 3: Cross multiply
    56,721.64x = 85,033.23 × 28,618.02
  4. Step 4: Simplify right side
    56,721.64x = 2,433,482,676.80
  5. Step 5: Solve for x
    x = 2,433,482,676.80/56,721.64
  6. Step 6: Final answer
    x = 42,902.19

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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.