Home / 74,629.35-102,909.58-57,636.36

Finding the Fourth Proportional to 74,629.35, 102,909.58 and 57,636.36

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Solution

The fourth proportional to 74,629.35, 102,909.58 and 57,636.36 is: 79,477.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,629.35 : 102,909.58 = 57,636.36 : x
  2. Step 2: Convert to fraction form
    74,629.35/102,909.58 = 57,636.36/x
  3. Step 3: Cross multiply
    74,629.35x = 102,909.58 × 57,636.36
  4. Step 4: Simplify right side
    74,629.35x = 5,931,333,456.24
  5. Step 5: Solve for x
    x = 5,931,333,456.24/74,629.35
  6. Step 6: Final answer
    x = 79,477.22

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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.