Home / 65,485.16-90,353.76-38,245.80

Finding the Fourth Proportional to 65,485.16, 90,353.76 and 38,245.80

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Solution

The fourth proportional to 65,485.16, 90,353.76 and 38,245.80 is: 52,770.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,485.16 : 90,353.76 = 38,245.80 : x
  2. Step 2: Convert to fraction form
    65,485.16/90,353.76 = 38,245.80/x
  3. Step 3: Cross multiply
    65,485.16x = 90,353.76 × 38,245.80
  4. Step 4: Simplify right side
    65,485.16x = 3,455,651,834.21
  5. Step 5: Solve for x
    x = 3,455,651,834.21/65,485.16
  6. Step 6: Final answer
    x = 52,770.00

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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.