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Finding the Fourth Proportional to 70,903.40, 97,846.49 and 39,072.29

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Solution

The fourth proportional to 70,903.40, 97,846.49 and 39,072.29 is: 53,919.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,903.40 : 97,846.49 = 39,072.29 : x
  2. Step 2: Convert to fraction form
    70,903.40/97,846.49 = 39,072.29/x
  3. Step 3: Cross multiply
    70,903.40x = 97,846.49 × 39,072.29
  4. Step 4: Simplify right side
    70,903.40x = 3,823,086,432.76
  5. Step 5: Solve for x
    x = 3,823,086,432.76/70,903.40
  6. Step 6: Final answer
    x = 53,919.65

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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.