Home / 56,913.04-78,536.80-31,764.16

Finding the Fourth Proportional to 56,913.04, 78,536.80 and 31,764.16

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Solution

The fourth proportional to 56,913.04, 78,536.80 and 31,764.16 is: 43,832.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,913.04 : 78,536.80 = 31,764.16 : x
  2. Step 2: Convert to fraction form
    56,913.04/78,536.80 = 31,764.16/x
  3. Step 3: Cross multiply
    56,913.04x = 78,536.80 × 31,764.16
  4. Step 4: Simplify right side
    56,913.04x = 2,494,655,481.09
  5. Step 5: Solve for x
    x = 2,494,655,481.09/56,913.04
  6. Step 6: Final answer
    x = 43,832.76

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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.