Home / 74,614.16-102,964.16-40,621.80

Finding the Fourth Proportional to 74,614.16, 102,964.16 and 40,621.80

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Solution

The fourth proportional to 74,614.16, 102,964.16 and 40,621.80 is: 56,056.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,614.16 : 102,964.16 = 40,621.80 : x
  2. Step 2: Convert to fraction form
    74,614.16/102,964.16 = 40,621.80/x
  3. Step 3: Cross multiply
    74,614.16x = 102,964.16 × 40,621.80
  4. Step 4: Simplify right side
    74,614.16x = 4,182,590,002.36
  5. Step 5: Solve for x
    x = 4,182,590,002.36/74,614.16
  6. Step 6: Final answer
    x = 56,056.25

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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.