Home / 90,491.45-124,878.29-52,772.99

Finding the Fourth Proportional to 90,491.45, 124,878.29 and 52,772.99

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Solution

The fourth proportional to 90,491.45, 124,878.29 and 52,772.99 is: 72,826.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,491.45 : 124,878.29 = 52,772.99 : x
  2. Step 2: Convert to fraction form
    90,491.45/124,878.29 = 52,772.99/x
  3. Step 3: Cross multiply
    90,491.45x = 124,878.29 × 52,772.99
  4. Step 4: Simplify right side
    90,491.45x = 6,590,200,749.39
  5. Step 5: Solve for x
    x = 6,590,200,749.39/90,491.45
  6. Step 6: Final answer
    x = 72,826.78

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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.