Home / 85,281.07-117,687.99-47,039.76

Finding the Fourth Proportional to 85,281.07, 117,687.99 and 47,039.76

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Solution

The fourth proportional to 85,281.07, 117,687.99 and 47,039.76 is: 64,914.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,281.07 : 117,687.99 = 47,039.76 : x
  2. Step 2: Convert to fraction form
    85,281.07/117,687.99 = 47,039.76/x
  3. Step 3: Cross multiply
    85,281.07x = 117,687.99 × 47,039.76
  4. Step 4: Simplify right side
    85,281.07x = 5,536,014,804.48
  5. Step 5: Solve for x
    x = 5,536,014,804.48/85,281.07
  6. Step 6: Final answer
    x = 64,914.93

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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.