Home / 74,264.40-102,520.80-50,071.20

Finding the Fourth Proportional to 74,264.40, 102,520.80 and 50,071.20

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Solution

The fourth proportional to 74,264.40, 102,520.80 and 50,071.20 is: 69,122.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,264.40 : 102,520.80 = 50,071.20 : x
  2. Step 2: Convert to fraction form
    74,264.40/102,520.80 = 50,071.20/x
  3. Step 3: Cross multiply
    74,264.40x = 102,520.80 × 50,071.20
  4. Step 4: Simplify right side
    74,264.40x = 5,133,339,480.96
  5. Step 5: Solve for x
    x = 5,133,339,480.96/74,264.40
  6. Step 6: Final answer
    x = 69,122.48

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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.