Home / 66,407.36-99,596.82-19,009.72

Finding the Fourth Proportional to 66,407.36, 99,596.82 and 19,009.72

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Solution

The fourth proportional to 66,407.36, 99,596.82 and 19,009.72 is: 28,510.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,407.36 : 99,596.82 = 19,009.72 : x
  2. Step 2: Convert to fraction form
    66,407.36/99,596.82 = 19,009.72/x
  3. Step 3: Cross multiply
    66,407.36x = 99,596.82 × 19,009.72
  4. Step 4: Simplify right side
    66,407.36x = 1,893,307,696.48
  5. Step 5: Solve for x
    x = 1,893,307,696.48/66,407.36
  6. Step 6: Final answer
    x = 28,510.51

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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.