Home / 90,152.64-124,405.92-49,865.76

Finding the Fourth Proportional to 90,152.64, 124,405.92 and 49,865.76

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Solution

The fourth proportional to 90,152.64, 124,405.92 and 49,865.76 is: 68,812.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,152.64 : 124,405.92 = 49,865.76 : x
  2. Step 2: Convert to fraction form
    90,152.64/124,405.92 = 49,865.76/x
  3. Step 3: Cross multiply
    90,152.64x = 124,405.92 × 49,865.76
  4. Step 4: Simplify right side
    90,152.64x = 6,203,595,749.30
  5. Step 5: Solve for x
    x = 6,203,595,749.30/90,152.64
  6. Step 6: Final answer
    x = 68,812.14

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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.