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Finding the Fourth Proportional to 49,440, 68,230.08 and 28,225.92

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Solution

The fourth proportional to 49,440, 68,230.08 and 28,225.92 is: 38,953.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,440 : 68,230.08 = 28,225.92 : x
  2. Step 2: Convert to fraction form
    49,440/68,230.08 = 28,225.92/x
  3. Step 3: Cross multiply
    49,440x = 68,230.08 × 28,225.92
  4. Step 4: Simplify right side
    49,440x = 1,925,856,779.67
  5. Step 5: Solve for x
    x = 1,925,856,779.67/49,440
  6. Step 6: Final answer
    x = 38,953.41

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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.