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Finding the Fourth Proportional to 65,253.60, 97,880.40 and 40,212.45

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Solution

The fourth proportional to 65,253.60, 97,880.40 and 40,212.45 is: 60,318.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,253.60 : 97,880.40 = 40,212.45 : x
  2. Step 2: Convert to fraction form
    65,253.60/97,880.40 = 40,212.45/x
  3. Step 3: Cross multiply
    65,253.60x = 97,880.40 × 40,212.45
  4. Step 4: Simplify right side
    65,253.60x = 3,936,010,690.98
  5. Step 5: Solve for x
    x = 3,936,010,690.98/65,253.60
  6. Step 6: Final answer
    x = 60,318.68

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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.