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Finding the Fourth Proportional to 40,690.70, 60,999.60 and 26,657.45

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Solution

The fourth proportional to 40,690.70, 60,999.60 and 26,657.45 is: 39,962.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,690.70 : 60,999.60 = 26,657.45 : x
  2. Step 2: Convert to fraction form
    40,690.70/60,999.60 = 26,657.45/x
  3. Step 3: Cross multiply
    40,690.70x = 60,999.60 × 26,657.45
  4. Step 4: Simplify right side
    40,690.70x = 1,626,093,787.02
  5. Step 5: Solve for x
    x = 1,626,093,787.02/40,690.70
  6. Step 6: Final answer
    x = 39,962.30

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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.