Home / 42,971.90-64,481.34-16,677.68

Finding the Fourth Proportional to 42,971.90, 64,481.34 and 16,677.68

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Solution

The fourth proportional to 42,971.90, 64,481.34 and 16,677.68 is: 25,025.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,971.90 : 64,481.34 = 16,677.68 : x
  2. Step 2: Convert to fraction form
    42,971.90/64,481.34 = 16,677.68/x
  3. Step 3: Cross multiply
    42,971.90x = 64,481.34 × 16,677.68
  4. Step 4: Simplify right side
    42,971.90x = 1,075,399,154.49
  5. Step 5: Solve for x
    x = 1,075,399,154.49/42,971.90
  6. Step 6: Final answer
    x = 25,025.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.