Home / 74,771.36-103,193.76-42,939.57

Finding the Fourth Proportional to 74,771.36, 103,193.76 and 42,939.57

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Solution

The fourth proportional to 74,771.36, 103,193.76 and 42,939.57 is: 59,261.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,771.36 : 103,193.76 = 42,939.57 : x
  2. Step 2: Convert to fraction form
    74,771.36/103,193.76 = 42,939.57/x
  3. Step 3: Cross multiply
    74,771.36x = 103,193.76 × 42,939.57
  4. Step 4: Simplify right side
    74,771.36x = 4,431,095,681.08
  5. Step 5: Solve for x
    x = 4,431,095,681.08/74,771.36
  6. Step 6: Final answer
    x = 59,261.94

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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.