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Finding the Fourth Proportional to 70,027.01, 105,008.93 and 20,095.78

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Solution

The fourth proportional to 70,027.01, 105,008.93 and 20,095.78 is: 30,134.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,027.01 : 105,008.93 = 20,095.78 : x
  2. Step 2: Convert to fraction form
    70,027.01/105,008.93 = 20,095.78/x
  3. Step 3: Cross multiply
    70,027.01x = 105,008.93 × 20,095.78
  4. Step 4: Simplify right side
    70,027.01x = 2,110,235,992.31
  5. Step 5: Solve for x
    x = 2,110,235,992.31/70,027.01
  6. Step 6: Final answer
    x = 30,134.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.