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Finding the Fourth Proportional to 39,002.40, 54,741.60 and 39,002.40

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Solution

The fourth proportional to 39,002.40, 54,741.60 and 39,002.40 is: 54,741.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,002.40 : 54,741.60 = 39,002.40 : x
  2. Step 2: Convert to fraction form
    39,002.40/54,741.60 = 39,002.40/x
  3. Step 3: Cross multiply
    39,002.40x = 54,741.60 × 39,002.40
  4. Step 4: Simplify right side
    39,002.40x = 2,135,053,779.84
  5. Step 5: Solve for x
    x = 2,135,053,779.84/39,002.40
  6. Step 6: Final answer
    x = 54,741.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.