Home / 74,322.66-102,564.99-40,331.28

Finding the Fourth Proportional to 74,322.66, 102,564.99 and 40,331.28

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Solution

The fourth proportional to 74,322.66, 102,564.99 and 40,331.28 is: 55,657.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,322.66 : 102,564.99 = 40,331.28 : x
  2. Step 2: Convert to fraction form
    74,322.66/102,564.99 = 40,331.28/x
  3. Step 3: Cross multiply
    74,322.66x = 102,564.99 × 40,331.28
  4. Step 4: Simplify right side
    74,322.66x = 4,136,577,329.89
  5. Step 5: Solve for x
    x = 4,136,577,329.89/74,322.66
  6. Step 6: Final answer
    x = 55,657.01

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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.