Home / 77,163.32-106,545.80-59,229.92

Finding the Fourth Proportional to 77,163.32, 106,545.80 and 59,229.92

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Solution

The fourth proportional to 77,163.32, 106,545.80 and 59,229.92 is: 81,783.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,163.32 : 106,545.80 = 59,229.92 : x
  2. Step 2: Convert to fraction form
    77,163.32/106,545.80 = 59,229.92/x
  3. Step 3: Cross multiply
    77,163.32x = 106,545.80 × 59,229.92
  4. Step 4: Simplify right side
    77,163.32x = 6,310,699,210.34
  5. Step 5: Solve for x
    x = 6,310,699,210.34/77,163.32
  6. Step 6: Final answer
    x = 81,783.67

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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.