Home / 56,845.26-78,445.39-31,354

Finding the Fourth Proportional to 56,845.26, 78,445.39 and 31,354

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Solution

The fourth proportional to 56,845.26, 78,445.39 and 31,354 is: 43,267.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,845.26 : 78,445.39 = 31,354 : x
  2. Step 2: Convert to fraction form
    56,845.26/78,445.39 = 31,354/x
  3. Step 3: Cross multiply
    56,845.26x = 78,445.39 × 31,354
  4. Step 4: Simplify right side
    56,845.26x = 2,459,576,758.06
  5. Step 5: Solve for x
    x = 2,459,576,758.06/56,845.26
  6. Step 6: Final answer
    x = 43,267.93

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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.