Home / 56,931.78-85,408.83-21,868.74

Finding the Fourth Proportional to 56,931.78, 85,408.83 and 21,868.74

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Solution

The fourth proportional to 56,931.78, 85,408.83 and 21,868.74 is: 32,807.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,931.78 : 85,408.83 = 21,868.74 : x
  2. Step 2: Convert to fraction form
    56,931.78/85,408.83 = 21,868.74/x
  3. Step 3: Cross multiply
    56,931.78x = 85,408.83 × 21,868.74
  4. Step 4: Simplify right side
    56,931.78x = 1,867,783,496.97
  5. Step 5: Solve for x
    x = 1,867,783,496.97/56,931.78
  6. Step 6: Final answer
    x = 32,807.40

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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.