Home / 86,036.21-118,731.53-48,311.81

Finding the Fourth Proportional to 86,036.21, 118,731.53 and 48,311.81

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Solution

The fourth proportional to 86,036.21, 118,731.53 and 48,311.81 is: 66,671.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,036.21 : 118,731.53 = 48,311.81 : x
  2. Step 2: Convert to fraction form
    86,036.21/118,731.53 = 48,311.81/x
  3. Step 3: Cross multiply
    86,036.21x = 118,731.53 × 48,311.81
  4. Step 4: Simplify right side
    86,036.21x = 5,736,134,876.81
  5. Step 5: Solve for x
    x = 5,736,134,876.81/86,036.21
  6. Step 6: Final answer
    x = 66,671.17

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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.