Home / 84,863.47-127,313.43-28,700.81

Finding the Fourth Proportional to 84,863.47, 127,313.43 and 28,700.81

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Solution

The fourth proportional to 84,863.47, 127,313.43 and 28,700.81 is: 43,057.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,863.47 : 127,313.43 = 28,700.81 : x
  2. Step 2: Convert to fraction form
    84,863.47/127,313.43 = 28,700.81/x
  3. Step 3: Cross multiply
    84,863.47x = 127,313.43 × 28,700.81
  4. Step 4: Simplify right side
    84,863.47x = 3,653,998,564.88
  5. Step 5: Solve for x
    x = 3,653,998,564.88/84,863.47
  6. Step 6: Final answer
    x = 43,057.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.