Home / 70,342.12-97,072.41-38,513.98

Finding the Fourth Proportional to 70,342.12, 97,072.41 and 38,513.98

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Solution

The fourth proportional to 70,342.12, 97,072.41 and 38,513.98 is: 53,149.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,342.12 : 97,072.41 = 38,513.98 : x
  2. Step 2: Convert to fraction form
    70,342.12/97,072.41 = 38,513.98/x
  3. Step 3: Cross multiply
    70,342.12x = 97,072.41 × 38,513.98
  4. Step 4: Simplify right side
    70,342.12x = 3,738,644,857.29
  5. Step 5: Solve for x
    x = 3,738,644,857.29/70,342.12
  6. Step 6: Final answer
    x = 53,149.45

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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.