Home / 53,460.30-80,209.65-51,540.30

Finding the Fourth Proportional to 53,460.30, 80,209.65 and 51,540.30

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Solution

The fourth proportional to 53,460.30, 80,209.65 and 51,540.30 is: 77,328.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,460.30 : 80,209.65 = 51,540.30 : x
  2. Step 2: Convert to fraction form
    53,460.30/80,209.65 = 51,540.30/x
  3. Step 3: Cross multiply
    53,460.30x = 80,209.65 × 51,540.30
  4. Step 4: Simplify right side
    53,460.30x = 4,134,029,423.90
  5. Step 5: Solve for x
    x = 4,134,029,423.90/53,460.30
  6. Step 6: Final answer
    x = 77,328.96

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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.