Home / 84,485.48-115,968.79-74,711.19

Finding the Fourth Proportional to 84,485.48, 115,968.79 and 74,711.19

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Solution

The fourth proportional to 84,485.48, 115,968.79 and 74,711.19 is: 102,552.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,485.48 : 115,968.79 = 74,711.19 : x
  2. Step 2: Convert to fraction form
    84,485.48/115,968.79 = 74,711.19/x
  3. Step 3: Cross multiply
    84,485.48x = 115,968.79 × 74,711.19
  4. Step 4: Simplify right side
    84,485.48x = 8,664,165,643.42
  5. Step 5: Solve for x
    x = 8,664,165,643.42/84,485.48
  6. Step 6: Final answer
    x = 102,552.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.