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Finding the Fourth Proportional to 82,834.40, 124,251.60 and 27,430.40

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Solution

The fourth proportional to 82,834.40, 124,251.60 and 27,430.40 is: 41,145.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,834.40 : 124,251.60 = 27,430.40 : x
  2. Step 2: Convert to fraction form
    82,834.40/124,251.60 = 27,430.40/x
  3. Step 3: Cross multiply
    82,834.40x = 124,251.60 × 27,430.40
  4. Step 4: Simplify right side
    82,834.40x = 3,408,271,088.64
  5. Step 5: Solve for x
    x = 3,408,271,088.64/82,834.40
  6. Step 6: Final answer
    x = 41,145.60

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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.