Home / 40,765.94-61,141.09-12,686.35

Finding the Fourth Proportional to 40,765.94, 61,141.09 and 12,686.35

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Solution

The fourth proportional to 40,765.94, 61,141.09 and 12,686.35 is: 19,027.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,765.94 : 61,141.09 = 12,686.35 : x
  2. Step 2: Convert to fraction form
    40,765.94/61,141.09 = 12,686.35/x
  3. Step 3: Cross multiply
    40,765.94x = 61,141.09 × 12,686.35
  4. Step 4: Simplify right side
    40,765.94x = 775,656,897.98
  5. Step 5: Solve for x
    x = 775,656,897.98/40,765.94
  6. Step 6: Final answer
    x = 19,027.08

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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.