Home / 81,445.24-122,168.27-53,541.55

Finding the Fourth Proportional to 81,445.24, 122,168.27 and 53,541.55

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Solution

The fourth proportional to 81,445.24, 122,168.27 and 53,541.55 is: 80,312.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,445.24 : 122,168.27 = 53,541.55 : x
  2. Step 2: Convert to fraction form
    81,445.24/122,168.27 = 53,541.55/x
  3. Step 3: Cross multiply
    81,445.24x = 122,168.27 × 53,541.55
  4. Step 4: Simplify right side
    81,445.24x = 6,541,078,536.62
  5. Step 5: Solve for x
    x = 6,541,078,536.62/81,445.24
  6. Step 6: Final answer
    x = 80,312.59

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1.5x scale

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.