Home / 72,092.09-99,486.75-39,826.72

Finding the Fourth Proportional to 72,092.09, 99,486.75 and 39,826.72

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Solution

The fourth proportional to 72,092.09, 99,486.75 and 39,826.72 is: 54,960.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,092.09 : 99,486.75 = 39,826.72 : x
  2. Step 2: Convert to fraction form
    72,092.09/99,486.75 = 39,826.72/x
  3. Step 3: Cross multiply
    72,092.09x = 99,486.75 × 39,826.72
  4. Step 4: Simplify right side
    72,092.09x = 3,962,230,538.09
  5. Step 5: Solve for x
    x = 3,962,230,538.09/72,092.09
  6. Step 6: Final answer
    x = 54,960.69

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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.