Home / 99,939.51-149,842.58-40,759.29

Finding the Fourth Proportional to 99,939.51, 149,842.58 and 40,759.29

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Solution

The fourth proportional to 99,939.51, 149,842.58 and 40,759.29 is: 61,111.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,939.51 : 149,842.58 = 40,759.29 : x
  2. Step 2: Convert to fraction form
    99,939.51/149,842.58 = 40,759.29/x
  3. Step 3: Cross multiply
    99,939.51x = 149,842.58 × 40,759.29
  4. Step 4: Simplify right side
    99,939.51x = 6,107,476,968.77
  5. Step 5: Solve for x
    x = 6,107,476,968.77/99,939.51
  6. Step 6: Final answer
    x = 61,111.74

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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.