Home / 71,673.12-98,896.95-39,837.69

Finding the Fourth Proportional to 71,673.12, 98,896.95 and 39,837.69

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Solution

The fourth proportional to 71,673.12, 98,896.95 and 39,837.69 is: 54,969.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,673.12 : 98,896.95 = 39,837.69 : x
  2. Step 2: Convert to fraction form
    71,673.12/98,896.95 = 39,837.69/x
  3. Step 3: Cross multiply
    71,673.12x = 98,896.95 × 39,837.69
  4. Step 4: Simplify right side
    71,673.12x = 3,939,826,036.05
  5. Step 5: Solve for x
    x = 3,939,826,036.05/71,673.12
  6. Step 6: Final answer
    x = 54,969.37

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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.