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Finding the Fourth Proportional to 42,246.40, 63,369.60 and 36,409.60

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Solution

The fourth proportional to 42,246.40, 63,369.60 and 36,409.60 is: 54,614.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,246.40 : 63,369.60 = 36,409.60 : x
  2. Step 2: Convert to fraction form
    42,246.40/63,369.60 = 36,409.60/x
  3. Step 3: Cross multiply
    42,246.40x = 63,369.60 × 36,409.60
  4. Step 4: Simplify right side
    42,246.40x = 2,307,261,788.16
  5. Step 5: Solve for x
    x = 2,307,261,788.16/42,246.40
  6. Step 6: Final answer
    x = 54,614.40

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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.