Home / 81,165.19-112,005.81-45,355.49

Finding the Fourth Proportional to 81,165.19, 112,005.81 and 45,355.49

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Solution

The fourth proportional to 81,165.19, 112,005.81 and 45,355.49 is: 62,589.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,165.19 : 112,005.81 = 45,355.49 : x
  2. Step 2: Convert to fraction form
    81,165.19/112,005.81 = 45,355.49/x
  3. Step 3: Cross multiply
    81,165.19x = 112,005.81 × 45,355.49
  4. Step 4: Simplify right side
    81,165.19x = 5,080,078,395.40
  5. Step 5: Solve for x
    x = 5,080,078,395.40/81,165.19
  6. Step 6: Final answer
    x = 62,589.37

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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.