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Finding the Fourth Proportional to 81,408.87, 112,343.58 and 45,599.22

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Solution

The fourth proportional to 81,408.87, 112,343.58 and 45,599.22 is: 62,926.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,408.87 : 112,343.58 = 45,599.22 : x
  2. Step 2: Convert to fraction form
    81,408.87/112,343.58 = 45,599.22/x
  3. Step 3: Cross multiply
    81,408.87x = 112,343.58 × 45,599.22
  4. Step 4: Simplify right side
    81,408.87x = 5,122,779,620.01
  5. Step 5: Solve for x
    x = 5,122,779,620.01/81,408.87
  6. Step 6: Final answer
    x = 62,926.55

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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.