Home / 85,939.34-118,618.10-58,726.44

Finding the Fourth Proportional to 85,939.34, 118,618.10 and 58,726.44

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Solution

The fourth proportional to 85,939.34, 118,618.10 and 58,726.44 is: 81,057.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,939.34 : 118,618.10 = 58,726.44 : x
  2. Step 2: Convert to fraction form
    85,939.34/118,618.10 = 58,726.44/x
  3. Step 3: Cross multiply
    85,939.34x = 118,618.10 × 58,726.44
  4. Step 4: Simplify right side
    85,939.34x = 6,966,018,438.93
  5. Step 5: Solve for x
    x = 6,966,018,438.93/85,939.34
  6. Step 6: Final answer
    x = 81,057.39

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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.