Home / 81,450.08-122,188.36-28,848.16

Finding the Fourth Proportional to 81,450.08, 122,188.36 and 28,848.16

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Solution

The fourth proportional to 81,450.08, 122,188.36 and 28,848.16 is: 43,276.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,450.08 : 122,188.36 = 28,848.16 : x
  2. Step 2: Convert to fraction form
    81,450.08/122,188.36 = 28,848.16/x
  3. Step 3: Cross multiply
    81,450.08x = 122,188.36 × 28,848.16
  4. Step 4: Simplify right side
    81,450.08x = 3,524,909,359.42
  5. Step 5: Solve for x
    x = 3,524,909,359.42/81,450.08
  6. Step 6: Final answer
    x = 43,276.93

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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.