Home / 43,643.20-65,541.60-42,260.80

Finding the Fourth Proportional to 43,643.20, 65,541.60 and 42,260.80

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Solution

The fourth proportional to 43,643.20, 65,541.60 and 42,260.80 is: 63,465.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,643.20 : 65,541.60 = 42,260.80 : x
  2. Step 2: Convert to fraction form
    43,643.20/65,541.60 = 42,260.80/x
  3. Step 3: Cross multiply
    43,643.20x = 65,541.60 × 42,260.80
  4. Step 4: Simplify right side
    43,643.20x = 2,769,840,449.28
  5. Step 5: Solve for x
    x = 2,769,840,449.28/43,643.20
  6. Step 6: Final answer
    x = 63,465.57

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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.