Home / 47,447.64-65,435.32-39,368.49

Finding the Fourth Proportional to 47,447.64, 65,435.32 and 39,368.49

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Solution

The fourth proportional to 47,447.64, 65,435.32 and 39,368.49 is: 54,293.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,447.64 : 65,435.32 = 39,368.49 : x
  2. Step 2: Convert to fraction form
    47,447.64/65,435.32 = 39,368.49/x
  3. Step 3: Cross multiply
    47,447.64x = 65,435.32 × 39,368.49
  4. Step 4: Simplify right side
    47,447.64x = 2,576,089,741.07
  5. Step 5: Solve for x
    x = 2,576,089,741.07/47,447.64
  6. Step 6: Final answer
    x = 54,293.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.