Home / 78,837.24-118,286.10-32,129.40

Finding the Fourth Proportional to 78,837.24, 118,286.10 and 32,129.40

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Solution

The fourth proportional to 78,837.24, 118,286.10 and 32,129.40 is: 48,206.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,837.24 : 118,286.10 = 32,129.40 : x
  2. Step 2: Convert to fraction form
    78,837.24/118,286.10 = 32,129.40/x
  3. Step 3: Cross multiply
    78,837.24x = 118,286.10 × 32,129.40
  4. Step 4: Simplify right side
    78,837.24x = 3,800,461,421.34
  5. Step 5: Solve for x
    x = 3,800,461,421.34/78,837.24
  6. Step 6: Final answer
    x = 48,206.42

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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.