Home / 56,716.72-85,087.88-18,765.91

Finding the Fourth Proportional to 56,716.72, 85,087.88 and 18,765.91

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Solution

The fourth proportional to 56,716.72, 85,087.88 and 18,765.91 is: 28,153.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,716.72 : 85,087.88 = 18,765.91 : x
  2. Step 2: Convert to fraction form
    56,716.72/85,087.88 = 18,765.91/x
  3. Step 3: Cross multiply
    56,716.72x = 85,087.88 × 18,765.91
  4. Step 4: Simplify right side
    56,716.72x = 1,596,751,686.63
  5. Step 5: Solve for x
    x = 1,596,751,686.63/56,716.72
  6. Step 6: Final answer
    x = 28,153.10

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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.