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Finding the Fourth Proportional to 40,762.40, 61,143.60 and 28,952.60

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Solution

The fourth proportional to 40,762.40, 61,143.60 and 28,952.60 is: 43,428.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,762.40 : 61,143.60 = 28,952.60 : x
  2. Step 2: Convert to fraction form
    40,762.40/61,143.60 = 28,952.60/x
  3. Step 3: Cross multiply
    40,762.40x = 61,143.60 × 28,952.60
  4. Step 4: Simplify right side
    40,762.40x = 1,770,266,193.36
  5. Step 5: Solve for x
    x = 1,770,266,193.36/40,762.40
  6. Step 6: Final answer
    x = 43,428.90

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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.