Home / 56,730.88-78,287.97-31,236.72

Finding the Fourth Proportional to 56,730.88, 78,287.97 and 31,236.72

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Solution

The fourth proportional to 56,730.88, 78,287.97 and 31,236.72 is: 43,106.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,730.88 : 78,287.97 = 31,236.72 : x
  2. Step 2: Convert to fraction form
    56,730.88/78,287.97 = 31,236.72/x
  3. Step 3: Cross multiply
    56,730.88x = 78,287.97 × 31,236.72
  4. Step 4: Simplify right side
    56,730.88x = 2,445,459,398.26
  5. Step 5: Solve for x
    x = 2,445,459,398.26/56,730.88
  6. Step 6: Final answer
    x = 43,106.32

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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.