Home / 74,862.60-103,285.59-49,381.62

Finding the Fourth Proportional to 74,862.60, 103,285.59 and 49,381.62

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Solution

The fourth proportional to 74,862.60, 103,285.59 and 49,381.62 is: 68,130.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,862.60 : 103,285.59 = 49,381.62 : x
  2. Step 2: Convert to fraction form
    74,862.60/103,285.59 = 49,381.62/x
  3. Step 3: Cross multiply
    74,862.60x = 103,285.59 × 49,381.62
  4. Step 4: Simplify right side
    74,862.60x = 5,100,409,756.86
  5. Step 5: Solve for x
    x = 5,100,409,756.86/74,862.60
  6. Step 6: Final answer
    x = 68,130.28

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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.