Home / 45,105.42-67,658.10-28,490.70

Finding the Fourth Proportional to 45,105.42, 67,658.10 and 28,490.70

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Solution

The fourth proportional to 45,105.42, 67,658.10 and 28,490.70 is: 42,736.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,105.42 : 67,658.10 = 28,490.70 : x
  2. Step 2: Convert to fraction form
    45,105.42/67,658.10 = 28,490.70/x
  3. Step 3: Cross multiply
    45,105.42x = 67,658.10 × 28,490.70
  4. Step 4: Simplify right side
    45,105.42x = 1,927,626,629.67
  5. Step 5: Solve for x
    x = 1,927,626,629.67/45,105.42
  6. Step 6: Final answer
    x = 42,736.03

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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.