Home / 66,474.19-99,696.09-19,088.90

Finding the Fourth Proportional to 66,474.19, 99,696.09 and 19,088.90

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Solution

The fourth proportional to 66,474.19, 99,696.09 and 19,088.90 is: 28,628.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,474.19 : 99,696.09 = 19,088.90 : x
  2. Step 2: Convert to fraction form
    66,474.19/99,696.09 = 19,088.90/x
  3. Step 3: Cross multiply
    66,474.19x = 99,696.09 × 19,088.90
  4. Step 4: Simplify right side
    66,474.19x = 1,903,089,006.27
  5. Step 5: Solve for x
    x = 1,903,089,006.27/66,474.19
  6. Step 6: Final answer
    x = 28,628.99

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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.