Home / 40,868.35-61,271.44-21,134.32

Finding the Fourth Proportional to 40,868.35, 61,271.44 and 21,134.32

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Solution

The fourth proportional to 40,868.35, 61,271.44 and 21,134.32 is: 31,685.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,868.35 : 61,271.44 = 21,134.32 : x
  2. Step 2: Convert to fraction form
    40,868.35/61,271.44 = 21,134.32/x
  3. Step 3: Cross multiply
    40,868.35x = 61,271.44 × 21,134.32
  4. Step 4: Simplify right side
    40,868.35x = 1,294,930,013.81
  5. Step 5: Solve for x
    x = 1,294,930,013.81/40,868.35
  6. Step 6: Final answer
    x = 31,685.40

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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.