Home / 40,768.40-61,152.60-13,069.20

Finding the Fourth Proportional to 40,768.40, 61,152.60 and 13,069.20

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Solution

The fourth proportional to 40,768.40, 61,152.60 and 13,069.20 is: 19,603.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,768.40 : 61,152.60 = 13,069.20 : x
  2. Step 2: Convert to fraction form
    40,768.40/61,152.60 = 13,069.20/x
  3. Step 3: Cross multiply
    40,768.40x = 61,152.60 × 13,069.20
  4. Step 4: Simplify right side
    40,768.40x = 799,215,559.92
  5. Step 5: Solve for x
    x = 799,215,559.92/40,768.40
  6. Step 6: Final answer
    x = 19,603.80

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1.5x scale

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.