Home / 53,905.20-80,771.40-34,148.40

Finding the Fourth Proportional to 53,905.20, 80,771.40 and 34,148.40

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Solution

The fourth proportional to 53,905.20, 80,771.40 and 34,148.40 is: 51,167.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,905.20 : 80,771.40 = 34,148.40 : x
  2. Step 2: Convert to fraction form
    53,905.20/80,771.40 = 34,148.40/x
  3. Step 3: Cross multiply
    53,905.20x = 80,771.40 × 34,148.40
  4. Step 4: Simplify right side
    53,905.20x = 2,758,214,075.76
  5. Step 5: Solve for x
    x = 2,758,214,075.76/53,905.20
  6. Step 6: Final answer
    x = 51,167.87

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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.