Home / 72,257.37-99,715.25-40,426.29

Finding the Fourth Proportional to 72,257.37, 99,715.25 and 40,426.29

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Solution

The fourth proportional to 72,257.37, 99,715.25 and 40,426.29 is: 55,788.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,257.37 : 99,715.25 = 40,426.29 : x
  2. Step 2: Convert to fraction form
    72,257.37/99,715.25 = 40,426.29/x
  3. Step 3: Cross multiply
    72,257.37x = 99,715.25 × 40,426.29
  4. Step 4: Simplify right side
    72,257.37x = 4,031,117,714.99
  5. Step 5: Solve for x
    x = 4,031,117,714.99/72,257.37
  6. Step 6: Final answer
    x = 55,788.33

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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.