Home / 72,626.22-100,225.48-40,363.78

Finding the Fourth Proportional to 72,626.22, 100,225.48 and 40,363.78

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Solution

The fourth proportional to 72,626.22, 100,225.48 and 40,363.78 is: 55,702.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,626.22 : 100,225.48 = 40,363.78 : x
  2. Step 2: Convert to fraction form
    72,626.22/100,225.48 = 40,363.78/x
  3. Step 3: Cross multiply
    72,626.22x = 100,225.48 × 40,363.78
  4. Step 4: Simplify right side
    72,626.22x = 4,045,479,225.11
  5. Step 5: Solve for x
    x = 4,045,479,225.11/72,626.22
  6. Step 6: Final answer
    x = 55,702.74

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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.