Home / 45,702.40-68,575.20-19,429.60

Finding the Fourth Proportional to 45,702.40, 68,575.20 and 19,429.60

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Solution

The fourth proportional to 45,702.40, 68,575.20 and 19,429.60 is: 29,153.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,702.40 : 68,575.20 = 19,429.60 : x
  2. Step 2: Convert to fraction form
    45,702.40/68,575.20 = 19,429.60/x
  3. Step 3: Cross multiply
    45,702.40x = 68,575.20 × 19,429.60
  4. Step 4: Simplify right side
    45,702.40x = 1,332,388,705.92
  5. Step 5: Solve for x
    x = 1,332,388,705.92/45,702.40
  6. Step 6: Final answer
    x = 29,153.58

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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.