Home / 75,521.16-104,247.54-56,712.60

Finding the Fourth Proportional to 75,521.16, 104,247.54 and 56,712.60

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Solution

The fourth proportional to 75,521.16, 104,247.54 and 56,712.60 is: 78,284.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,521.16 : 104,247.54 = 56,712.60 : x
  2. Step 2: Convert to fraction form
    75,521.16/104,247.54 = 56,712.60/x
  3. Step 3: Cross multiply
    75,521.16x = 104,247.54 × 56,712.60
  4. Step 4: Simplify right side
    75,521.16x = 5,912,149,037.00
  5. Step 5: Solve for x
    x = 5,912,149,037.00/75,521.16
  6. Step 6: Final answer
    x = 78,284.67

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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.