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Finding the Fourth Proportional to 70,796.84, 97,702.40 and 38,968.70

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Solution

The fourth proportional to 70,796.84, 97,702.40 and 38,968.70 is: 53,778.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,796.84 : 97,702.40 = 38,968.70 : x
  2. Step 2: Convert to fraction form
    70,796.84/97,702.40 = 38,968.70/x
  3. Step 3: Cross multiply
    70,796.84x = 97,702.40 × 38,968.70
  4. Step 4: Simplify right side
    70,796.84x = 3,807,335,123.79
  5. Step 5: Solve for x
    x = 3,807,335,123.79/70,796.84
  6. Step 6: Final answer
    x = 53,778.32

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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.