Home / 66,018.18-99,020.25-18,632.10

Finding the Fourth Proportional to 66,018.18, 99,020.25 and 18,632.10

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Solution

The fourth proportional to 66,018.18, 99,020.25 and 18,632.10 is: 27,946.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,018.18 : 99,020.25 = 18,632.10 : x
  2. Step 2: Convert to fraction form
    66,018.18/99,020.25 = 18,632.10/x
  3. Step 3: Cross multiply
    66,018.18x = 99,020.25 × 18,632.10
  4. Step 4: Simplify right side
    66,018.18x = 1,844,955,200.03
  5. Step 5: Solve for x
    x = 1,844,955,200.03/66,018.18
  6. Step 6: Final answer
    x = 27,946.17

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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.