Home / 76,141.34-105,122.85-48,929.60

Finding the Fourth Proportional to 76,141.34, 105,122.85 and 48,929.60

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Solution

The fourth proportional to 76,141.34, 105,122.85 and 48,929.60 is: 67,553.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,141.34 : 105,122.85 = 48,929.60 : x
  2. Step 2: Convert to fraction form
    76,141.34/105,122.85 = 48,929.60/x
  3. Step 3: Cross multiply
    76,141.34x = 105,122.85 × 48,929.60
  4. Step 4: Simplify right side
    76,141.34x = 5,143,618,475.75
  5. Step 5: Solve for x
    x = 5,143,618,475.75/76,141.34
  6. Step 6: Final answer
    x = 67,553.56

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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.