Home / 90,173.22-124,428.28-49,881.52

Finding the Fourth Proportional to 90,173.22, 124,428.28 and 49,881.52

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Solution

The fourth proportional to 90,173.22, 124,428.28 and 49,881.52 is: 68,830.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,173.22 : 124,428.28 = 49,881.52 : x
  2. Step 2: Convert to fraction form
    90,173.22/124,428.28 = 49,881.52/x
  3. Step 3: Cross multiply
    90,173.22x = 124,428.28 × 49,881.52
  4. Step 4: Simplify right side
    90,173.22x = 6,206,671,737.39
  5. Step 5: Solve for x
    x = 6,206,671,737.39/90,173.22
  6. Step 6: Final answer
    x = 68,830.54

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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.