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Finding the Fourth Proportional to 80,810.66, 111,518.24 and 47,275.94

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Solution

The fourth proportional to 80,810.66, 111,518.24 and 47,275.94 is: 65,240.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,810.66 : 111,518.24 = 47,275.94 : x
  2. Step 2: Convert to fraction form
    80,810.66/111,518.24 = 47,275.94/x
  3. Step 3: Cross multiply
    80,810.66x = 111,518.24 × 47,275.94
  4. Step 4: Simplify right side
    80,810.66x = 5,272,129,623.15
  5. Step 5: Solve for x
    x = 5,272,129,623.15/80,810.66
  6. Step 6: Final answer
    x = 65,240.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.