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Finding the Fourth Proportional to 70,967.34, 97,935.12 and 39,135.42

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Solution

The fourth proportional to 70,967.34, 97,935.12 and 39,135.42 is: 54,006.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,967.34 : 97,935.12 = 39,135.42 : x
  2. Step 2: Convert to fraction form
    70,967.34/97,935.12 = 39,135.42/x
  3. Step 3: Cross multiply
    70,967.34x = 97,935.12 × 39,135.42
  4. Step 4: Simplify right side
    70,967.34x = 3,832,732,053.95
  5. Step 5: Solve for x
    x = 3,832,732,053.95/70,967.34
  6. Step 6: Final answer
    x = 54,006.98

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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.