Home / 80,578.16-111,108.22-55,088.67

Finding the Fourth Proportional to 80,578.16, 111,108.22 and 55,088.67

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Solution

The fourth proportional to 80,578.16, 111,108.22 and 55,088.67 is: 75,961.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,578.16 : 111,108.22 = 55,088.67 : x
  2. Step 2: Convert to fraction form
    80,578.16/111,108.22 = 55,088.67/x
  3. Step 3: Cross multiply
    80,578.16x = 111,108.22 × 55,088.67
  4. Step 4: Simplify right side
    80,578.16x = 6,120,803,790.42
  5. Step 5: Solve for x
    x = 6,120,803,790.42/80,578.16
  6. Step 6: Final answer
    x = 75,961.08

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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.