Home / 84,031.36-115,960.96-45,790.08

Finding the Fourth Proportional to 84,031.36, 115,960.96 and 45,790.08

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Solution

The fourth proportional to 84,031.36, 115,960.96 and 45,790.08 is: 63,189.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,031.36 : 115,960.96 = 45,790.08 : x
  2. Step 2: Convert to fraction form
    84,031.36/115,960.96 = 45,790.08/x
  3. Step 3: Cross multiply
    84,031.36x = 115,960.96 × 45,790.08
  4. Step 4: Simplify right side
    84,031.36x = 5,309,861,635.28
  5. Step 5: Solve for x
    x = 5,309,861,635.28/84,031.36
  6. Step 6: Final answer
    x = 63,189.05

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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.