Home / 55,263.88-76,263.96-31,385.80

Finding the Fourth Proportional to 55,263.88, 76,263.96 and 31,385.80

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Solution

The fourth proportional to 55,263.88, 76,263.96 and 31,385.80 is: 43,312.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,263.88 : 76,263.96 = 31,385.80 : x
  2. Step 2: Convert to fraction form
    55,263.88/76,263.96 = 31,385.80/x
  3. Step 3: Cross multiply
    55,263.88x = 76,263.96 × 31,385.80
  4. Step 4: Simplify right side
    55,263.88x = 2,393,605,395.77
  5. Step 5: Solve for x
    x = 2,393,605,395.77/55,263.88
  6. Step 6: Final answer
    x = 43,312.29

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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.