Home / 83,965.12-115,871.52-46,239.36

Finding the Fourth Proportional to 83,965.12, 115,871.52 and 46,239.36

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Solution

The fourth proportional to 83,965.12, 115,871.52 and 46,239.36 is: 63,810.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,965.12 : 115,871.52 = 46,239.36 : x
  2. Step 2: Convert to fraction form
    83,965.12/115,871.52 = 46,239.36/x
  3. Step 3: Cross multiply
    83,965.12x = 115,871.52 × 46,239.36
  4. Step 4: Simplify right side
    83,965.12x = 5,357,824,927.03
  5. Step 5: Solve for x
    x = 5,357,824,927.03/83,965.12
  6. Step 6: Final answer
    x = 63,810.13

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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.