Home / 74,564.78-102,896.28-40,573.40

Finding the Fourth Proportional to 74,564.78, 102,896.28 and 40,573.40

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Solution

The fourth proportional to 74,564.78, 102,896.28 and 40,573.40 is: 55,989.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,564.78 : 102,896.28 = 40,573.40 : x
  2. Step 2: Convert to fraction form
    74,564.78/102,896.28 = 40,573.40/x
  3. Step 3: Cross multiply
    74,564.78x = 102,896.28 × 40,573.40
  4. Step 4: Simplify right side
    74,564.78x = 4,174,851,412.47
  5. Step 5: Solve for x
    x = 4,174,851,412.47/74,564.78
  6. Step 6: Final answer
    x = 55,989.59

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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.