Home / 85,339,975.76-117,740,337.35-55,557,062.58

Finding the Fourth Proportional to 85,339,975.76, 117,740,337.35 and 55,557,062.58

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Solution

The fourth proportional to 85,339,975.76, 117,740,337.35 and 55,557,062.58 is: 76,649,978.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,339,975.76 : 117,740,337.35 = 55,557,062.58 : x
  2. Step 2: Convert to fraction form
    85,339,975.76/117,740,337.35 = 55,557,062.58/x
  3. Step 3: Cross multiply
    85,339,975.76x = 117,740,337.35 × 55,557,062.58
  4. Step 4: Simplify right side
    85,339,975.76x = 6,541,307,290,344,261
  5. Step 5: Solve for x
    x = 6,541,307,290,344,261/85,339,975.76
  6. Step 6: Final answer
    x = 76,649,978.30

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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.