Home / 74,868.76-103,431.60-49,088.59

Finding the Fourth Proportional to 74,868.76, 103,431.60 and 49,088.59

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Solution

The fourth proportional to 74,868.76, 103,431.60 and 49,088.59 is: 67,816.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,868.76 : 103,431.60 = 49,088.59 : x
  2. Step 2: Convert to fraction form
    74,868.76/103,431.60 = 49,088.59/x
  3. Step 3: Cross multiply
    74,868.76x = 103,431.60 × 49,088.59
  4. Step 4: Simplify right side
    74,868.76x = 5,077,311,405.44
  5. Step 5: Solve for x
    x = 5,077,311,405.44/74,868.76
  6. Step 6: Final answer
    x = 67,816.15

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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.