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Finding the Fourth Proportional to 70,052.60, 105,150.36 and 51,276.86

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Solution

The fourth proportional to 70,052.60, 105,150.36 and 51,276.86 is: 76,967.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,052.60 : 105,150.36 = 51,276.86 : x
  2. Step 2: Convert to fraction form
    70,052.60/105,150.36 = 51,276.86/x
  3. Step 3: Cross multiply
    70,052.60x = 105,150.36 × 51,276.86
  4. Step 4: Simplify right side
    70,052.60x = 5,391,779,762.92
  5. Step 5: Solve for x
    x = 5,391,779,762.92/70,052.60
  6. Step 6: Final answer
    x = 76,967.60

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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.