Home / 85,530.25-118,035.39-47,804.50

Finding the Fourth Proportional to 85,530.25, 118,035.39 and 47,804.50

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Solution

The fourth proportional to 85,530.25, 118,035.39 and 47,804.50 is: 65,972.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,530.25 : 118,035.39 = 47,804.50 : x
  2. Step 2: Convert to fraction form
    85,530.25/118,035.39 = 47,804.50/x
  3. Step 3: Cross multiply
    85,530.25x = 118,035.39 × 47,804.50
  4. Step 4: Simplify right side
    85,530.25x = 5,642,622,801.26
  5. Step 5: Solve for x
    x = 5,642,622,801.26/85,530.25
  6. Step 6: Final answer
    x = 65,972.25

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1.5x scale

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.