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Finding the Fourth Proportional to 70,312.70, 96,930.66 and 50,134.58

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Solution

The fourth proportional to 70,312.70, 96,930.66 and 50,134.58 is: 69,113.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,312.70 : 96,930.66 = 50,134.58 : x
  2. Step 2: Convert to fraction form
    70,312.70/96,930.66 = 50,134.58/x
  3. Step 3: Cross multiply
    70,312.70x = 96,930.66 × 50,134.58
  4. Step 4: Simplify right side
    70,312.70x = 4,859,577,928.22
  5. Step 5: Solve for x
    x = 4,859,577,928.22/70,312.70
  6. Step 6: Final answer
    x = 69,113.80

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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.