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Finding the Fourth Proportional to 84,952.70, 127,356.15 and 43,399.70

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Solution

The fourth proportional to 84,952.70, 127,356.15 and 43,399.70 is: 65,062.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,952.70 : 127,356.15 = 43,399.70 : x
  2. Step 2: Convert to fraction form
    84,952.70/127,356.15 = 43,399.70/x
  3. Step 3: Cross multiply
    84,952.70x = 127,356.15 × 43,399.70
  4. Step 4: Simplify right side
    84,952.70x = 5,527,218,703.16
  5. Step 5: Solve for x
    x = 5,527,218,703.16/84,952.70
  6. Step 6: Final answer
    x = 65,062.31

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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.