Home / 74,768.75-103,122.54-47,913.76

Finding the Fourth Proportional to 74,768.75, 103,122.54 and 47,913.76

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Solution

The fourth proportional to 74,768.75, 103,122.54 and 47,913.76 is: 66,083.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,768.75 : 103,122.54 = 47,913.76 : x
  2. Step 2: Convert to fraction form
    74,768.75/103,122.54 = 47,913.76/x
  3. Step 3: Cross multiply
    74,768.75x = 103,122.54 × 47,913.76
  4. Step 4: Simplify right side
    74,768.75x = 4,940,988,895.81
  5. Step 5: Solve for x
    x = 4,940,988,895.81/74,768.75
  6. Step 6: Final answer
    x = 66,083.61

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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.