Home / 88,709.53-122,339.23-56,872.21

Finding the Fourth Proportional to 88,709.53, 122,339.23 and 56,872.21

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Solution

The fourth proportional to 88,709.53, 122,339.23 and 56,872.21 is: 78,432.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,709.53 : 122,339.23 = 56,872.21 : x
  2. Step 2: Convert to fraction form
    88,709.53/122,339.23 = 56,872.21/x
  3. Step 3: Cross multiply
    88,709.53x = 122,339.23 × 56,872.21
  4. Step 4: Simplify right side
    88,709.53x = 6,957,702,379.80
  5. Step 5: Solve for x
    x = 6,957,702,379.80/88,709.53
  6. Step 6: Final answer
    x = 78,432.41

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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.