Home / 74,436.02-102,721.69-40,902.02

Finding the Fourth Proportional to 74,436.02, 102,721.69 and 40,902.02

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Solution

The fourth proportional to 74,436.02, 102,721.69 and 40,902.02 is: 56,444.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,436.02 : 102,721.69 = 40,902.02 : x
  2. Step 2: Convert to fraction form
    74,436.02/102,721.69 = 40,902.02/x
  3. Step 3: Cross multiply
    74,436.02x = 102,721.69 × 40,902.02
  4. Step 4: Simplify right side
    74,436.02x = 4,201,524,618.81
  5. Step 5: Solve for x
    x = 4,201,524,618.81/74,436.02
  6. Step 6: Final answer
    x = 56,444.78

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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.