Home / 85,750.13-118,338.83-49,934.36

Finding the Fourth Proportional to 85,750.13, 118,338.83 and 49,934.36

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Solution

The fourth proportional to 85,750.13, 118,338.83 and 49,934.36 is: 68,911.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,750.13 : 118,338.83 = 49,934.36 : x
  2. Step 2: Convert to fraction form
    85,750.13/118,338.83 = 49,934.36/x
  3. Step 3: Cross multiply
    85,750.13x = 118,338.83 × 49,934.36
  4. Step 4: Simplify right side
    85,750.13x = 5,909,172,897.83
  5. Step 5: Solve for x
    x = 5,909,172,897.83/85,750.13
  6. Step 6: Final answer
    x = 68,911.54

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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.