Home / 85,631.04-118,171.68-51,641.28

Finding the Fourth Proportional to 85,631.04, 118,171.68 and 51,641.28

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Solution

The fourth proportional to 85,631.04, 118,171.68 and 51,641.28 is: 71,265.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,631.04 : 118,171.68 = 51,641.28 : x
  2. Step 2: Convert to fraction form
    85,631.04/118,171.68 = 51,641.28/x
  3. Step 3: Cross multiply
    85,631.04x = 118,171.68 × 51,641.28
  4. Step 4: Simplify right side
    85,631.04x = 6,102,536,814.95
  5. Step 5: Solve for x
    x = 6,102,536,814.95/85,631.04
  6. Step 6: Final answer
    x = 71,265.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.