Home / 72,164.39-99,586.19-39,901.24

Finding the Fourth Proportional to 72,164.39, 99,586.19 and 39,901.24

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Solution

The fourth proportional to 72,164.39, 99,586.19 and 39,901.24 is: 55,063.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,164.39 : 99,586.19 = 39,901.24 : x
  2. Step 2: Convert to fraction form
    72,164.39/99,586.19 = 39,901.24/x
  3. Step 3: Cross multiply
    72,164.39x = 99,586.19 × 39,901.24
  4. Step 4: Simplify right side
    72,164.39x = 3,973,612,318.66
  5. Step 5: Solve for x
    x = 3,973,612,318.66/72,164.39
  6. Step 6: Final answer
    x = 55,063.34

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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.