Home / 85,149.18-117,509.52-47,423.43

Finding the Fourth Proportional to 85,149.18, 117,509.52 and 47,423.43

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Solution

The fourth proportional to 85,149.18, 117,509.52 and 47,423.43 is: 65,446.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,149.18 : 117,509.52 = 47,423.43 : x
  2. Step 2: Convert to fraction form
    85,149.18/117,509.52 = 47,423.43/x
  3. Step 3: Cross multiply
    85,149.18x = 117,509.52 × 47,423.43
  4. Step 4: Simplify right side
    85,149.18x = 5,572,704,496.05
  5. Step 5: Solve for x
    x = 5,572,704,496.05/85,149.18
  6. Step 6: Final answer
    x = 65,446.37

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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.