Home / 85,455.10-117,927.93-47,729.35

Finding the Fourth Proportional to 85,455.10, 117,927.93 and 47,729.35

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Solution

The fourth proportional to 85,455.10, 117,927.93 and 47,729.35 is: 65,866.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,455.10 : 117,927.93 = 47,729.35 : x
  2. Step 2: Convert to fraction form
    85,455.10/117,927.93 = 47,729.35/x
  3. Step 3: Cross multiply
    85,455.10x = 117,927.93 × 47,729.35
  4. Step 4: Simplify right side
    85,455.10x = 5,628,623,445.75
  5. Step 5: Solve for x
    x = 5,628,623,445.75/85,455.10
  6. Step 6: Final answer
    x = 65,866.44

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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.