Home / 66,263.04-99,399.12-21,921

Finding the Fourth Proportional to 66,263.04, 99,399.12 and 21,921

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Solution

The fourth proportional to 66,263.04, 99,399.12 and 21,921 is: 32,883.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,263.04 : 99,399.12 = 21,921 : x
  2. Step 2: Convert to fraction form
    66,263.04/99,399.12 = 21,921/x
  3. Step 3: Cross multiply
    66,263.04x = 99,399.12 × 21,921
  4. Step 4: Simplify right side
    66,263.04x = 2,178,928,109.52
  5. Step 5: Solve for x
    x = 2,178,928,109.52/66,263.04
  6. Step 6: Final answer
    x = 32,883.01

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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.