Home / 85,918.11-118,566.75-47,683.43

Finding the Fourth Proportional to 85,918.11, 118,566.75 and 47,683.43

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Solution

The fourth proportional to 85,918.11, 118,566.75 and 47,683.43 is: 65,803.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,918.11 : 118,566.75 = 47,683.43 : x
  2. Step 2: Convert to fraction form
    85,918.11/118,566.75 = 47,683.43/x
  3. Step 3: Cross multiply
    85,918.11x = 118,566.75 × 47,683.43
  4. Step 4: Simplify right side
    85,918.11x = 5,653,669,323.95
  5. Step 5: Solve for x
    x = 5,653,669,323.95/85,918.11
  6. Step 6: Final answer
    x = 65,803.00

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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.