Home / 43,615.70-65,423.55-40,408.10

Finding the Fourth Proportional to 43,615.70, 65,423.55 and 40,408.10

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Solution

The fourth proportional to 43,615.70, 65,423.55 and 40,408.10 is: 60,612.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,615.70 : 65,423.55 = 40,408.10 : x
  2. Step 2: Convert to fraction form
    43,615.70/65,423.55 = 40,408.10/x
  3. Step 3: Cross multiply
    43,615.70x = 65,423.55 × 40,408.10
  4. Step 4: Simplify right side
    43,615.70x = 2,643,641,350.76
  5. Step 5: Solve for x
    x = 2,643,641,350.76/43,615.70
  6. Step 6: Final answer
    x = 60,612.15

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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.