Home / 74,490.10-102,796.32-40,956.10

Finding the Fourth Proportional to 74,490.10, 102,796.32 and 40,956.10

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Solution

The fourth proportional to 74,490.10, 102,796.32 and 40,956.10 is: 56,519.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,490.10 : 102,796.32 = 40,956.10 : x
  2. Step 2: Convert to fraction form
    74,490.10/102,796.32 = 40,956.10/x
  3. Step 3: Cross multiply
    74,490.10x = 102,796.32 × 40,956.10
  4. Step 4: Simplify right side
    74,490.10x = 4,210,136,361.55
  5. Step 5: Solve for x
    x = 4,210,136,361.55/74,490.10
  6. Step 6: Final answer
    x = 56,519.41

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1.5x scale

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.