Home / 72,027.26-99,395.01-39,761.18

Finding the Fourth Proportional to 72,027.26, 99,395.01 and 39,761.18

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Solution

The fourth proportional to 72,027.26, 99,395.01 and 39,761.18 is: 54,868.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,027.26 : 99,395.01 = 39,761.18 : x
  2. Step 2: Convert to fraction form
    72,027.26/99,395.01 = 39,761.18/x
  3. Step 3: Cross multiply
    72,027.26x = 99,395.01 × 39,761.18
  4. Step 4: Simplify right side
    72,027.26x = 3,952,062,927.19
  5. Step 5: Solve for x
    x = 3,952,062,927.19/72,027.26
  6. Step 6: Final answer
    x = 54,868.99

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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.