Home / 85,604.23-118,133.20-47,878.48

Finding the Fourth Proportional to 85,604.23, 118,133.20 and 47,878.48

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Solution

The fourth proportional to 85,604.23, 118,133.20 and 47,878.48 is: 66,071.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,604.23 : 118,133.20 = 47,878.48 : x
  2. Step 2: Convert to fraction form
    85,604.23/118,133.20 = 47,878.48/x
  3. Step 3: Cross multiply
    85,604.23x = 118,133.20 × 47,878.48
  4. Step 4: Simplify right side
    85,604.23x = 5,656,037,814.14
  5. Step 5: Solve for x
    x = 5,656,037,814.14/85,604.23
  6. Step 6: Final answer
    x = 66,071.94

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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.