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Finding the Fourth Proportional to 51,397.34, 70,928.07 and 29,879.42

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Solution

The fourth proportional to 51,397.34, 70,928.07 and 29,879.42 is: 41,233.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,397.34 : 70,928.07 = 29,879.42 : x
  2. Step 2: Convert to fraction form
    51,397.34/70,928.07 = 29,879.42/x
  3. Step 3: Cross multiply
    51,397.34x = 70,928.07 × 29,879.42
  4. Step 4: Simplify right side
    51,397.34x = 2,119,289,593.32
  5. Step 5: Solve for x
    x = 2,119,289,593.32/51,397.34
  6. Step 6: Final answer
    x = 41,233.45

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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.