Home / 58,147.12-87,212.44-18,699.20

Finding the Fourth Proportional to 58,147.12, 87,212.44 and 18,699.20

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Solution

The fourth proportional to 58,147.12, 87,212.44 and 18,699.20 is: 28,046.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,147.12 : 87,212.44 = 18,699.20 : x
  2. Step 2: Convert to fraction form
    58,147.12/87,212.44 = 18,699.20/x
  3. Step 3: Cross multiply
    58,147.12x = 87,212.44 × 18,699.20
  4. Step 4: Simplify right side
    58,147.12x = 1,630,802,858.05
  5. Step 5: Solve for x
    x = 1,630,802,858.05/58,147.12
  6. Step 6: Final answer
    x = 28,046.15

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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.