Home / 66,217.85-99,312.73-21,834.06

Finding the Fourth Proportional to 66,217.85, 99,312.73 and 21,834.06

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Solution

The fourth proportional to 66,217.85, 99,312.73 and 21,834.06 is: 32,746.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,217.85 : 99,312.73 = 21,834.06 : x
  2. Step 2: Convert to fraction form
    66,217.85/99,312.73 = 21,834.06/x
  3. Step 3: Cross multiply
    66,217.85x = 99,312.73 × 21,834.06
  4. Step 4: Simplify right side
    66,217.85x = 2,168,399,801.39
  5. Step 5: Solve for x
    x = 2,168,399,801.39/66,217.85
  6. Step 6: Final answer
    x = 32,746.45

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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.