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Finding the Fourth Proportional to 65,676.66, 90,637.29 and 37,391.46

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Solution

The fourth proportional to 65,676.66, 90,637.29 and 37,391.46 is: 51,602.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,676.66 : 90,637.29 = 37,391.46 : x
  2. Step 2: Convert to fraction form
    65,676.66/90,637.29 = 37,391.46/x
  3. Step 3: Cross multiply
    65,676.66x = 90,637.29 × 37,391.46
  4. Step 4: Simplify right side
    65,676.66x = 3,389,060,603.54
  5. Step 5: Solve for x
    x = 3,389,060,603.54/65,676.66
  6. Step 6: Final answer
    x = 51,602.21

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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.