Home / 74,455.19-111,682.78-19,051.19

Finding the Fourth Proportional to 74,455.19, 111,682.78 and 19,051.19

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Solution

The fourth proportional to 74,455.19, 111,682.78 and 19,051.19 is: 28,576.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,455.19 : 111,682.78 = 19,051.19 : x
  2. Step 2: Convert to fraction form
    74,455.19/111,682.78 = 19,051.19/x
  3. Step 3: Cross multiply
    74,455.19x = 111,682.78 × 19,051.19
  4. Step 4: Simplify right side
    74,455.19x = 2,127,689,861.51
  5. Step 5: Solve for x
    x = 2,127,689,861.51/74,455.19
  6. Step 6: Final answer
    x = 28,576.78

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1.5x scale

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.