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Finding the Fourth Proportional to 53,913.40, 80,870.10 and 52,377.40

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Solution

The fourth proportional to 53,913.40, 80,870.10 and 52,377.40 is: 78,566.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,913.40 : 80,870.10 = 52,377.40 : x
  2. Step 2: Convert to fraction form
    53,913.40/80,870.10 = 52,377.40/x
  3. Step 3: Cross multiply
    53,913.40x = 80,870.10 × 52,377.40
  4. Step 4: Simplify right side
    53,913.40x = 4,235,765,575.74
  5. Step 5: Solve for x
    x = 4,235,765,575.74/53,913.40
  6. Step 6: Final answer
    x = 78,566.10

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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.