Home / 65,409.16-90,263.49-36,729.05

Finding the Fourth Proportional to 65,409.16, 90,263.49 and 36,729.05

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Solution

The fourth proportional to 65,409.16, 90,263.49 and 36,729.05 is: 50,685.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,409.16 : 90,263.49 = 36,729.05 : x
  2. Step 2: Convert to fraction form
    65,409.16/90,263.49 = 36,729.05/x
  3. Step 3: Cross multiply
    65,409.16x = 90,263.49 × 36,729.05
  4. Step 4: Simplify right side
    65,409.16x = 3,315,292,237.38
  5. Step 5: Solve for x
    x = 3,315,292,237.38/65,409.16
  6. Step 6: Final answer
    x = 50,685.44

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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.