Home / 81,282.88-112,165.14-45,466.72

Finding the Fourth Proportional to 81,282.88, 112,165.14 and 45,466.72

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Solution

The fourth proportional to 81,282.88, 112,165.14 and 45,466.72 is: 62,741.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,282.88 : 112,165.14 = 45,466.72 : x
  2. Step 2: Convert to fraction form
    81,282.88/112,165.14 = 45,466.72/x
  3. Step 3: Cross multiply
    81,282.88x = 112,165.14 × 45,466.72
  4. Step 4: Simplify right side
    81,282.88x = 5,099,781,014.14
  5. Step 5: Solve for x
    x = 5,099,781,014.14/81,282.88
  6. Step 6: Final answer
    x = 62,741.15

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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.