Home / 65,487.09-90,372.20-37,192.71

Finding the Fourth Proportional to 65,487.09, 90,372.20 and 37,192.71

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Solution

The fourth proportional to 65,487.09, 90,372.20 and 37,192.71 is: 51,325.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,487.09 : 90,372.20 = 37,192.71 : x
  2. Step 2: Convert to fraction form
    65,487.09/90,372.20 = 37,192.71/x
  3. Step 3: Cross multiply
    65,487.09x = 90,372.20 × 37,192.71
  4. Step 4: Simplify right side
    65,487.09x = 3,361,186,840.70
  5. Step 5: Solve for x
    x = 3,361,186,840.70/65,487.09
  6. Step 6: Final answer
    x = 51,325.95

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1.5x scale

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.