Home / 40,657.75-56,161.30-31,214.31

Finding the Fourth Proportional to 40,657.75, 56,161.30 and 31,214.31

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Solution

The fourth proportional to 40,657.75, 56,161.30 and 31,214.31 is: 43,116.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,657.75 : 56,161.30 = 31,214.31 : x
  2. Step 2: Convert to fraction form
    40,657.75/56,161.30 = 31,214.31/x
  3. Step 3: Cross multiply
    40,657.75x = 56,161.30 × 31,214.31
  4. Step 4: Simplify right side
    40,657.75x = 1,753,036,314.00
  5. Step 5: Solve for x
    x = 1,753,036,314.00/40,657.75
  6. Step 6: Final answer
    x = 43,116.91

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1.5x scale

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.