Home / 85,733.49-118,353.24-57,100.80

Finding the Fourth Proportional to 85,733.49, 118,353.24 and 57,100.80

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Solution

The fourth proportional to 85,733.49, 118,353.24 and 57,100.80 is: 78,826.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,733.49 : 118,353.24 = 57,100.80 : x
  2. Step 2: Convert to fraction form
    85,733.49/118,353.24 = 57,100.80/x
  3. Step 3: Cross multiply
    85,733.49x = 118,353.24 × 57,100.80
  4. Step 4: Simplify right side
    85,733.49x = 6,758,064,686.59
  5. Step 5: Solve for x
    x = 6,758,064,686.59/85,733.49
  6. Step 6: Final answer
    x = 78,826.43

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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.