Home / 86,749.66-119,712.54-48,509.74

Finding the Fourth Proportional to 86,749.66, 119,712.54 and 48,509.74

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Solution

The fourth proportional to 86,749.66, 119,712.54 and 48,509.74 is: 66,942.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,749.66 : 119,712.54 = 48,509.74 : x
  2. Step 2: Convert to fraction form
    86,749.66/119,712.54 = 48,509.74/x
  3. Step 3: Cross multiply
    86,749.66x = 119,712.54 × 48,509.74
  4. Step 4: Simplify right side
    86,749.66x = 5,807,224,190.14
  5. Step 5: Solve for x
    x = 5,807,224,190.14/86,749.66
  6. Step 6: Final answer
    x = 66,942.33

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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.