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Finding the Fourth Proportional to 85,946.60, 128,952.30 and 41,612.60

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Solution

The fourth proportional to 85,946.60, 128,952.30 and 41,612.60 is: 62,434.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,946.60 : 128,952.30 = 41,612.60 : x
  2. Step 2: Convert to fraction form
    85,946.60/128,952.30 = 41,612.60/x
  3. Step 3: Cross multiply
    85,946.60x = 128,952.30 × 41,612.60
  4. Step 4: Simplify right side
    85,946.60x = 5,366,040,478.98
  5. Step 5: Solve for x
    x = 5,366,040,478.98/85,946.60
  6. Step 6: Final answer
    x = 62,434.59

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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.