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Finding the Fourth Proportional to 48,702.40, 73,010.40 and 19,110.40

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Solution

The fourth proportional to 48,702.40, 73,010.40 and 19,110.40 is: 28,648.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,702.40 : 73,010.40 = 19,110.40 : x
  2. Step 2: Convert to fraction form
    48,702.40/73,010.40 = 19,110.40/x
  3. Step 3: Cross multiply
    48,702.40x = 73,010.40 × 19,110.40
  4. Step 4: Simplify right side
    48,702.40x = 1,395,257,948.16
  5. Step 5: Solve for x
    x = 1,395,257,948.16/48,702.40
  6. Step 6: Final answer
    x = 28,648.65

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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.