Home / 78,895.80-118,286.10-32,124.60

Finding the Fourth Proportional to 78,895.80, 118,286.10 and 32,124.60

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Solution

The fourth proportional to 78,895.80, 118,286.10 and 32,124.60 is: 48,163.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,895.80 : 118,286.10 = 32,124.60 : x
  2. Step 2: Convert to fraction form
    78,895.80/118,286.10 = 32,124.60/x
  3. Step 3: Cross multiply
    78,895.80x = 118,286.10 × 32,124.60
  4. Step 4: Simplify right side
    78,895.80x = 3,799,893,648.06
  5. Step 5: Solve for x
    x = 3,799,893,648.06/78,895.80
  6. Step 6: Final answer
    x = 48,163.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.