Home / 74,578.33-102,894.89-42,307.62

Finding the Fourth Proportional to 74,578.33, 102,894.89 and 42,307.62

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Solution

The fourth proportional to 74,578.33, 102,894.89 and 42,307.62 is: 58,371.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,578.33 : 102,894.89 = 42,307.62 : x
  2. Step 2: Convert to fraction form
    74,578.33/102,894.89 = 42,307.62/x
  3. Step 3: Cross multiply
    74,578.33x = 102,894.89 × 42,307.62
  4. Step 4: Simplify right side
    74,578.33x = 4,353,237,391.59
  5. Step 5: Solve for x
    x = 4,353,237,391.59/74,578.33
  6. Step 6: Final answer
    x = 58,371.34

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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.