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Finding the Fourth Proportional to 70,393.57, 97,118.78 and 53,380.09

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Solution

The fourth proportional to 70,393.57, 97,118.78 and 53,380.09 is: 73,646.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,393.57 : 97,118.78 = 53,380.09 : x
  2. Step 2: Convert to fraction form
    70,393.57/97,118.78 = 53,380.09/x
  3. Step 3: Cross multiply
    70,393.57x = 97,118.78 × 53,380.09
  4. Step 4: Simplify right side
    70,393.57x = 5,184,208,907.57
  5. Step 5: Solve for x
    x = 5,184,208,907.57/70,393.57
  6. Step 6: Final answer
    x = 73,646.06

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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.