Home / 85,555.83-118,067.79-47,830.08

Finding the Fourth Proportional to 85,555.83, 118,067.79 and 47,830.08

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Solution

The fourth proportional to 85,555.83, 118,067.79 and 47,830.08 is: 66,005.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,555.83 : 118,067.79 = 47,830.08 : x
  2. Step 2: Convert to fraction form
    85,555.83/118,067.79 = 47,830.08/x
  3. Step 3: Cross multiply
    85,555.83x = 118,067.79 × 47,830.08
  4. Step 4: Simplify right side
    85,555.83x = 5,647,191,841.12
  5. Step 5: Solve for x
    x = 5,647,191,841.12/85,555.83
  6. Step 6: Final answer
    x = 66,005.93

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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.