Home / 74,916.86-103,385.42-40,925.60

Finding the Fourth Proportional to 74,916.86, 103,385.42 and 40,925.60

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Solution

The fourth proportional to 74,916.86, 103,385.42 and 40,925.60 is: 56,477.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,916.86 : 103,385.42 = 40,925.60 : x
  2. Step 2: Convert to fraction form
    74,916.86/103,385.42 = 40,925.60/x
  3. Step 3: Cross multiply
    74,916.86x = 103,385.42 × 40,925.60
  4. Step 4: Simplify right side
    74,916.86x = 4,231,110,344.75
  5. Step 5: Solve for x
    x = 4,231,110,344.75/74,916.86
  6. Step 6: Final answer
    x = 56,477.41

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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.