Home / 84,049.47-115,985.31-45,808.23

Finding the Fourth Proportional to 84,049.47, 115,985.31 and 45,808.23

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Solution

The fourth proportional to 84,049.47, 115,985.31 and 45,808.23 is: 63,213.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,049.47 : 115,985.31 = 45,808.23 : x
  2. Step 2: Convert to fraction form
    84,049.47/115,985.31 = 45,808.23/x
  3. Step 3: Cross multiply
    84,049.47x = 115,985.31 × 45,808.23
  4. Step 4: Simplify right side
    84,049.47x = 5,313,081,757.10
  5. Step 5: Solve for x
    x = 5,313,081,757.10/84,049.47
  6. Step 6: Final answer
    x = 63,213.74

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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.