Home / 74,972.89-103,421.64-48,085.48

Finding the Fourth Proportional to 74,972.89, 103,421.64 and 48,085.48

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Solution

The fourth proportional to 74,972.89, 103,421.64 and 48,085.48 is: 66,331.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,972.89 : 103,421.64 = 48,085.48 : x
  2. Step 2: Convert to fraction form
    74,972.89/103,421.64 = 48,085.48/x
  3. Step 3: Cross multiply
    74,972.89x = 103,421.64 × 48,085.48
  4. Step 4: Simplify right side
    74,972.89x = 4,973,079,201.79
  5. Step 5: Solve for x
    x = 4,973,079,201.79/74,972.89
  6. Step 6: Final answer
    x = 66,331.70

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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.