Home / 56,354.28-77,774.18-31,208.68

Finding the Fourth Proportional to 56,354.28, 77,774.18 and 31,208.68

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Solution

The fourth proportional to 56,354.28, 77,774.18 and 31,208.68 is: 43,070.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,354.28 : 77,774.18 = 31,208.68 : x
  2. Step 2: Convert to fraction form
    56,354.28/77,774.18 = 31,208.68/x
  3. Step 3: Cross multiply
    56,354.28x = 77,774.18 × 31,208.68
  4. Step 4: Simplify right side
    56,354.28x = 2,427,229,495.88
  5. Step 5: Solve for x
    x = 2,427,229,495.88/56,354.28
  6. Step 6: Final answer
    x = 43,070.90

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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.