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Finding the Fourth Proportional to 35,440.40, 53,160.60 and 30,515.60

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Solution

The fourth proportional to 35,440.40, 53,160.60 and 30,515.60 is: 45,773.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,440.40 : 53,160.60 = 30,515.60 : x
  2. Step 2: Convert to fraction form
    35,440.40/53,160.60 = 30,515.60/x
  3. Step 3: Cross multiply
    35,440.40x = 53,160.60 × 30,515.60
  4. Step 4: Simplify right side
    35,440.40x = 1,622,227,605.36
  5. Step 5: Solve for x
    x = 1,622,227,605.36/35,440.40
  6. Step 6: Final answer
    x = 45,773.40

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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.