Home / 55,503.53-76,602.36-31,309.46

Finding the Fourth Proportional to 55,503.53, 76,602.36 and 31,309.46

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Solution

The fourth proportional to 55,503.53, 76,602.36 and 31,309.46 is: 43,211.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,503.53 : 76,602.36 = 31,309.46 : x
  2. Step 2: Convert to fraction form
    55,503.53/76,602.36 = 31,309.46/x
  3. Step 3: Cross multiply
    55,503.53x = 76,602.36 × 31,309.46
  4. Step 4: Simplify right side
    55,503.53x = 2,398,378,143.31
  5. Step 5: Solve for x
    x = 2,398,378,143.31/55,503.53
  6. Step 6: Final answer
    x = 43,211.28

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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.