Home / 81,328.47-112,219.90-51,092.39

Finding the Fourth Proportional to 81,328.47, 112,219.90 and 51,092.39

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Solution

The fourth proportional to 81,328.47, 112,219.90 and 51,092.39 is: 70,499.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,328.47 : 112,219.90 = 51,092.39 : x
  2. Step 2: Convert to fraction form
    81,328.47/112,219.90 = 51,092.39/x
  3. Step 3: Cross multiply
    81,328.47x = 112,219.90 × 51,092.39
  4. Step 4: Simplify right side
    81,328.47x = 5,733,582,418.14
  5. Step 5: Solve for x
    x = 5,733,582,418.14/81,328.47
  6. Step 6: Final answer
    x = 70,499.08

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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.