Home / 85,386.88-117,833.96-47,661.13

Finding the Fourth Proportional to 85,386.88, 117,833.96 and 47,661.13

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Solution

The fourth proportional to 85,386.88, 117,833.96 and 47,661.13 is: 65,772.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,386.88 : 117,833.96 = 47,661.13 : x
  2. Step 2: Convert to fraction form
    85,386.88/117,833.96 = 47,661.13/x
  3. Step 3: Cross multiply
    85,386.88x = 117,833.96 × 47,661.13
  4. Step 4: Simplify right side
    85,386.88x = 5,616,098,858.50
  5. Step 5: Solve for x
    x = 5,616,098,858.50/85,386.88
  6. Step 6: Final answer
    x = 65,772.39

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1.5x scale

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.