Home / 74,912.16-103,420.26-51,073.86

Finding the Fourth Proportional to 74,912.16, 103,420.26 and 51,073.86

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Solution

The fourth proportional to 74,912.16, 103,420.26 and 51,073.86 is: 70,510.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,912.16 : 103,420.26 = 51,073.86 : x
  2. Step 2: Convert to fraction form
    74,912.16/103,420.26 = 51,073.86/x
  3. Step 3: Cross multiply
    74,912.16x = 103,420.26 × 51,073.86
  4. Step 4: Simplify right side
    74,912.16x = 5,282,071,880.40
  5. Step 5: Solve for x
    x = 5,282,071,880.40/74,912.16
  6. Step 6: Final answer
    x = 70,510.21

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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.