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Finding the Fourth Proportional to 43,374.40, 65,061.60 and 38,449.60

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Solution

The fourth proportional to 43,374.40, 65,061.60 and 38,449.60 is: 57,674.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,374.40 : 65,061.60 = 38,449.60 : x
  2. Step 2: Convert to fraction form
    43,374.40/65,061.60 = 38,449.60/x
  3. Step 3: Cross multiply
    43,374.40x = 65,061.60 × 38,449.60
  4. Step 4: Simplify right side
    43,374.40x = 2,501,592,495.36
  5. Step 5: Solve for x
    x = 2,501,592,495.36/43,374.40
  6. Step 6: Final answer
    x = 57,674.40

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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.