Home / 84,030.42-115,960.47-45,790.25

Finding the Fourth Proportional to 84,030.42, 115,960.47 and 45,790.25

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Solution

The fourth proportional to 84,030.42, 115,960.47 and 45,790.25 is: 63,189.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,030.42 : 115,960.47 = 45,790.25 : x
  2. Step 2: Convert to fraction form
    84,030.42/115,960.47 = 45,790.25/x
  3. Step 3: Cross multiply
    84,030.42x = 115,960.47 × 45,790.25
  4. Step 4: Simplify right side
    84,030.42x = 5,309,858,331.62
  5. Step 5: Solve for x
    x = 5,309,858,331.62/84,030.42
  6. Step 6: Final answer
    x = 63,189.72

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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.