Home / 65,107.10-97,666.05-20,732.60

Finding the Fourth Proportional to 65,107.10, 97,666.05 and 20,732.60

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Solution

The fourth proportional to 65,107.10, 97,666.05 and 20,732.60 is: 31,100.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,107.10 : 97,666.05 = 20,732.60 : x
  2. Step 2: Convert to fraction form
    65,107.10/97,666.05 = 20,732.60/x
  3. Step 3: Cross multiply
    65,107.10x = 97,666.05 × 20,732.60
  4. Step 4: Simplify right side
    65,107.10x = 2,024,871,148.23
  5. Step 5: Solve for x
    x = 2,024,871,148.23/65,107.10
  6. Step 6: Final answer
    x = 31,100.62

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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.