Home / 85,316.14-117,742.88-47,083.28

Finding the Fourth Proportional to 85,316.14, 117,742.88 and 47,083.28

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Solution

The fourth proportional to 85,316.14, 117,742.88 and 47,083.28 is: 64,978.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,316.14 : 117,742.88 = 47,083.28 : x
  2. Step 2: Convert to fraction form
    85,316.14/117,742.88 = 47,083.28/x
  3. Step 3: Cross multiply
    85,316.14x = 117,742.88 × 47,083.28
  4. Step 4: Simplify right side
    85,316.14x = 5,543,721,045.99
  5. Step 5: Solve for x
    x = 5,543,721,045.99/85,316.14
  6. Step 6: Final answer
    x = 64,978.58

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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.