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Finding the Fourth Proportional to 70,854, 97,788.24 and 45,698.64

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Solution

The fourth proportional to 70,854, 97,788.24 and 45,698.64 is: 63,070.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,854 : 97,788.24 = 45,698.64 : x
  2. Step 2: Convert to fraction form
    70,854/97,788.24 = 45,698.64/x
  3. Step 3: Cross multiply
    70,854x = 97,788.24 × 45,698.64
  4. Step 4: Simplify right side
    70,854x = 4,468,789,575.99
  5. Step 5: Solve for x
    x = 4,468,789,575.99/70,854
  6. Step 6: Final answer
    x = 63,070.39

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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.