Home / 56,694.76-85,014.30-21,154.72

Finding the Fourth Proportional to 56,694.76, 85,014.30 and 21,154.72

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Solution

The fourth proportional to 56,694.76, 85,014.30 and 21,154.72 is: 31,721.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,694.76 : 85,014.30 = 21,154.72 : x
  2. Step 2: Convert to fraction form
    56,694.76/85,014.30 = 21,154.72/x
  3. Step 3: Cross multiply
    56,694.76x = 85,014.30 × 21,154.72
  4. Step 4: Simplify right side
    56,694.76x = 1,798,453,712.50
  5. Step 5: Solve for x
    x = 1,798,453,712.50/56,694.76
  6. Step 6: Final answer
    x = 31,721.69

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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.