Home / 71,666.51-98,896.55-39,837.15

Finding the Fourth Proportional to 71,666.51, 98,896.55 and 39,837.15

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Solution

The fourth proportional to 71,666.51, 98,896.55 and 39,837.15 is: 54,973.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,666.51 : 98,896.55 = 39,837.15 : x
  2. Step 2: Convert to fraction form
    71,666.51/98,896.55 = 39,837.15/x
  3. Step 3: Cross multiply
    71,666.51x = 98,896.55 × 39,837.15
  4. Step 4: Simplify right side
    71,666.51x = 3,939,756,497.65
  5. Step 5: Solve for x
    x = 3,939,756,497.65/71,666.51
  6. Step 6: Final answer
    x = 54,973.47

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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.