Home / 40,667.12-61,004.64-12,586.04

Finding the Fourth Proportional to 40,667.12, 61,004.64 and 12,586.04

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Solution

The fourth proportional to 40,667.12, 61,004.64 and 12,586.04 is: 18,880.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,667.12 : 61,004.64 = 12,586.04 : x
  2. Step 2: Convert to fraction form
    40,667.12/61,004.64 = 12,586.04/x
  3. Step 3: Cross multiply
    40,667.12x = 61,004.64 × 12,586.04
  4. Step 4: Simplify right side
    40,667.12x = 767,806,839.23
  5. Step 5: Solve for x
    x = 767,806,839.23/40,667.12
  6. Step 6: Final answer
    x = 18,880.29

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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.