Home / 66,330.70-99,511.47-18,946.51

Finding the Fourth Proportional to 66,330.70, 99,511.47 and 18,946.51

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Solution

The fourth proportional to 66,330.70, 99,511.47 and 18,946.51 is: 28,424.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,330.70 : 99,511.47 = 18,946.51 : x
  2. Step 2: Convert to fraction form
    66,330.70/99,511.47 = 18,946.51/x
  3. Step 3: Cross multiply
    66,330.70x = 99,511.47 × 18,946.51
  4. Step 4: Simplify right side
    66,330.70x = 1,885,394,812.69
  5. Step 5: Solve for x
    x = 1,885,394,812.69/66,330.70
  6. Step 6: Final answer
    x = 28,424.17

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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.