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Finding the Fourth Proportional to 84,943.02, 117,218.16 and 47,219.70

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Solution

The fourth proportional to 84,943.02, 117,218.16 and 47,219.70 is: 65,161.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,943.02 : 117,218.16 = 47,219.70 : x
  2. Step 2: Convert to fraction form
    84,943.02/117,218.16 = 47,219.70/x
  3. Step 3: Cross multiply
    84,943.02x = 117,218.16 × 47,219.70
  4. Step 4: Simplify right side
    84,943.02x = 5,535,006,349.75
  5. Step 5: Solve for x
    x = 5,535,006,349.75/84,943.02
  6. Step 6: Final answer
    x = 65,161.40

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Similar ratio
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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.