Home / 65,740.20-90,721.26-37,450.68

Finding the Fourth Proportional to 65,740.20, 90,721.26 and 37,450.68

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Solution

The fourth proportional to 65,740.20, 90,721.26 and 37,450.68 is: 51,681.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,740.20 : 90,721.26 = 37,450.68 : x
  2. Step 2: Convert to fraction form
    65,740.20/90,721.26 = 37,450.68/x
  3. Step 3: Cross multiply
    65,740.20x = 90,721.26 × 37,450.68
  4. Step 4: Simplify right side
    65,740.20x = 3,397,572,877.46
  5. Step 5: Solve for x
    x = 3,397,572,877.46/65,740.20
  6. Step 6: Final answer
    x = 51,681.82

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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.