Home / 43,707.60-65,561.40-43,318.80

Finding the Fourth Proportional to 43,707.60, 65,561.40 and 43,318.80

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Solution

The fourth proportional to 43,707.60, 65,561.40 and 43,318.80 is: 64,978.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,707.60 : 65,561.40 = 43,318.80 : x
  2. Step 2: Convert to fraction form
    43,707.60/65,561.40 = 43,318.80/x
  3. Step 3: Cross multiply
    43,707.60x = 65,561.40 × 43,318.80
  4. Step 4: Simplify right side
    43,707.60x = 2,840,041,174.32
  5. Step 5: Solve for x
    x = 2,840,041,174.32/43,707.60
  6. Step 6: Final answer
    x = 64,978.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.