Home / 56,715.13-85,091.64-25,120.90

Finding the Fourth Proportional to 56,715.13, 85,091.64 and 25,120.90

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Solution

The fourth proportional to 56,715.13, 85,091.64 and 25,120.90 is: 37,689.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,715.13 : 85,091.64 = 25,120.90 : x
  2. Step 2: Convert to fraction form
    56,715.13/85,091.64 = 25,120.90/x
  3. Step 3: Cross multiply
    56,715.13x = 85,091.64 × 25,120.90
  4. Step 4: Simplify right side
    56,715.13x = 2,137,578,579.28
  5. Step 5: Solve for x
    x = 2,137,578,579.28/56,715.13
  6. Step 6: Final answer
    x = 37,689.74

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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.