Home / 76,521.22-114,632.36-43,140.32

Finding the Fourth Proportional to 76,521.22, 114,632.36 and 43,140.32

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Solution

The fourth proportional to 76,521.22, 114,632.36 and 43,140.32 is: 64,626.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,521.22 : 114,632.36 = 43,140.32 : x
  2. Step 2: Convert to fraction form
    76,521.22/114,632.36 = 43,140.32/x
  3. Step 3: Cross multiply
    76,521.22x = 114,632.36 × 43,140.32
  4. Step 4: Simplify right side
    76,521.22x = 4,945,276,692.76
  5. Step 5: Solve for x
    x = 4,945,276,692.76/76,521.22
  6. Step 6: Final answer
    x = 64,626.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.