Home / 84,047.36-115,983.83-45,807.26

Finding the Fourth Proportional to 84,047.36, 115,983.83 and 45,807.26

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Solution

The fourth proportional to 84,047.36, 115,983.83 and 45,807.26 is: 63,213.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,047.36 : 115,983.83 = 45,807.26 : x
  2. Step 2: Convert to fraction form
    84,047.36/115,983.83 = 45,807.26/x
  3. Step 3: Cross multiply
    84,047.36x = 115,983.83 × 45,807.26
  4. Step 4: Simplify right side
    84,047.36x = 5,312,900,991.20
  5. Step 5: Solve for x
    x = 5,312,900,991.20/84,047.36
  6. Step 6: Final answer
    x = 63,213.18

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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.