Home / 85,616.54-118,144.40-47,883.50

Finding the Fourth Proportional to 85,616.54, 118,144.40 and 47,883.50

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Solution

The fourth proportional to 85,616.54, 118,144.40 and 47,883.50 is: 66,075.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,616.54 : 118,144.40 = 47,883.50 : x
  2. Step 2: Convert to fraction form
    85,616.54/118,144.40 = 47,883.50/x
  3. Step 3: Cross multiply
    85,616.54x = 118,144.40 × 47,883.50
  4. Step 4: Simplify right side
    85,616.54x = 5,657,167,377.40
  5. Step 5: Solve for x
    x = 5,657,167,377.40/85,616.54
  6. Step 6: Final answer
    x = 66,075.64

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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.