Home / 74,569.06-102,907.20-40,579.39

Finding the Fourth Proportional to 74,569.06, 102,907.20 and 40,579.39

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Solution

The fourth proportional to 74,569.06, 102,907.20 and 40,579.39 is: 56,000.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,569.06 : 102,907.20 = 40,579.39 : x
  2. Step 2: Convert to fraction form
    74,569.06/102,907.20 = 40,579.39/x
  3. Step 3: Cross multiply
    74,569.06x = 102,907.20 × 40,579.39
  4. Step 4: Simplify right side
    74,569.06x = 4,175,911,402.61
  5. Step 5: Solve for x
    x = 4,175,911,402.61/74,569.06
  6. Step 6: Final answer
    x = 56,000.59

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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.