Home / 85,511.12-118,004.48-47,785.37

Finding the Fourth Proportional to 85,511.12, 118,004.48 and 47,785.37

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Solution

The fourth proportional to 85,511.12, 118,004.48 and 47,785.37 is: 65,943.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,511.12 : 118,004.48 = 47,785.37 : x
  2. Step 2: Convert to fraction form
    85,511.12/118,004.48 = 47,785.37/x
  3. Step 3: Cross multiply
    85,511.12x = 118,004.48 × 47,785.37
  4. Step 4: Simplify right side
    85,511.12x = 5,638,887,499.53
  5. Step 5: Solve for x
    x = 5,638,887,499.53/85,511.12
  6. Step 6: Final answer
    x = 65,943.32

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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.