Home / 85,646.04-118,232.96-57,013.44

Finding the Fourth Proportional to 85,646.04, 118,232.96 and 57,013.44

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Solution

The fourth proportional to 85,646.04, 118,232.96 and 57,013.44 is: 78,706.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,646.04 : 118,232.96 = 57,013.44 : x
  2. Step 2: Convert to fraction form
    85,646.04/118,232.96 = 57,013.44/x
  3. Step 3: Cross multiply
    85,646.04x = 118,232.96 × 57,013.44
  4. Step 4: Simplify right side
    85,646.04x = 6,740,867,770.98
  5. Step 5: Solve for x
    x = 6,740,867,770.98/85,646.04
  6. Step 6: Final answer
    x = 78,706.12

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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.