Home / 56,915.74-85,363.98-20,884.78

Finding the Fourth Proportional to 56,915.74, 85,363.98 and 20,884.78

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Solution

The fourth proportional to 56,915.74, 85,363.98 and 20,884.78 is: 31,323.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,915.74 : 85,363.98 = 20,884.78 : x
  2. Step 2: Convert to fraction form
    56,915.74/85,363.98 = 20,884.78/x
  3. Step 3: Cross multiply
    56,915.74x = 85,363.98 × 20,884.78
  4. Step 4: Simplify right side
    56,915.74x = 1,782,807,942.22
  5. Step 5: Solve for x
    x = 1,782,807,942.22/56,915.74
  6. Step 6: Final answer
    x = 31,323.64

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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.