Home / 81,488.34-112,465.44-45,197.81

Finding the Fourth Proportional to 81,488.34, 112,465.44 and 45,197.81

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Solution

The fourth proportional to 81,488.34, 112,465.44 and 45,197.81 is: 62,379.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,488.34 : 112,465.44 = 45,197.81 : x
  2. Step 2: Convert to fraction form
    81,488.34/112,465.44 = 45,197.81/x
  3. Step 3: Cross multiply
    81,488.34x = 112,465.44 × 45,197.81
  4. Step 4: Simplify right side
    81,488.34x = 5,083,191,448.10
  5. Step 5: Solve for x
    x = 5,083,191,448.10/81,488.34
  6. Step 6: Final answer
    x = 62,379.37

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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.