Home / 56,899.26-78,511.59-31,748.70

Finding the Fourth Proportional to 56,899.26, 78,511.59 and 31,748.70

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Solution

The fourth proportional to 56,899.26, 78,511.59 and 31,748.70 is: 43,807.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,899.26 : 78,511.59 = 31,748.70 : x
  2. Step 2: Convert to fraction form
    56,899.26/78,511.59 = 31,748.70/x
  3. Step 3: Cross multiply
    56,899.26x = 78,511.59 × 31,748.70
  4. Step 4: Simplify right side
    56,899.26x = 2,492,640,917.43
  5. Step 5: Solve for x
    x = 2,492,640,917.43/56,899.26
  6. Step 6: Final answer
    x = 43,807.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.