Home / 80,953.83-121,445.36-36,601.47

Finding the Fourth Proportional to 80,953.83, 121,445.36 and 36,601.47

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Solution

The fourth proportional to 80,953.83, 121,445.36 and 36,601.47 is: 54,908.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,953.83 : 121,445.36 = 36,601.47 : x
  2. Step 2: Convert to fraction form
    80,953.83/121,445.36 = 36,601.47/x
  3. Step 3: Cross multiply
    80,953.83x = 121,445.36 × 36,601.47
  4. Step 4: Simplify right side
    80,953.83x = 4,445,078,517.67
  5. Step 5: Solve for x
    x = 4,445,078,517.67/80,953.83
  6. Step 6: Final answer
    x = 54,908.81

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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.