Home / 55,530.36-76,631.54-31,656.56

Finding the Fourth Proportional to 55,530.36, 76,631.54 and 31,656.56

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Solution

The fourth proportional to 55,530.36, 76,631.54 and 31,656.56 is: 43,685.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,530.36 : 76,631.54 = 31,656.56 : x
  2. Step 2: Convert to fraction form
    55,530.36/76,631.54 = 31,656.56/x
  3. Step 3: Cross multiply
    55,530.36x = 76,631.54 × 31,656.56
  4. Step 4: Simplify right side
    55,530.36x = 2,425,890,402.46
  5. Step 5: Solve for x
    x = 2,425,890,402.46/55,530.36
  6. Step 6: Final answer
    x = 43,685.84

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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.