Home / 47,052.40-70,578.60-20,729.20

Finding the Fourth Proportional to 47,052.40, 70,578.60 and 20,729.20

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Solution

The fourth proportional to 47,052.40, 70,578.60 and 20,729.20 is: 31,093.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,052.40 : 70,578.60 = 20,729.20 : x
  2. Step 2: Convert to fraction form
    47,052.40/70,578.60 = 20,729.20/x
  3. Step 3: Cross multiply
    47,052.40x = 70,578.60 × 20,729.20
  4. Step 4: Simplify right side
    47,052.40x = 1,463,037,915.12
  5. Step 5: Solve for x
    x = 1,463,037,915.12/47,052.40
  6. Step 6: Final answer
    x = 31,093.80

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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.