Home / 85,612.26-118,145.04-47,886.50

Finding the Fourth Proportional to 85,612.26, 118,145.04 and 47,886.50

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Solution

The fourth proportional to 85,612.26, 118,145.04 and 47,886.50 is: 66,083.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,612.26 : 118,145.04 = 47,886.50 : x
  2. Step 2: Convert to fraction form
    85,612.26/118,145.04 = 47,886.50/x
  3. Step 3: Cross multiply
    85,612.26x = 118,145.04 × 47,886.50
  4. Step 4: Simplify right side
    85,612.26x = 5,657,552,457.96
  5. Step 5: Solve for x
    x = 5,657,552,457.96/85,612.26
  6. Step 6: Final answer
    x = 66,083.44

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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.