Home / 81,572.22-112,570.74-49,302.42

Finding the Fourth Proportional to 81,572.22, 112,570.74 and 49,302.42

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Solution

The fourth proportional to 81,572.22, 112,570.74 and 49,302.42 is: 68,037.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,572.22 : 112,570.74 = 49,302.42 : x
  2. Step 2: Convert to fraction form
    81,572.22/112,570.74 = 49,302.42/x
  3. Step 3: Cross multiply
    81,572.22x = 112,570.74 × 49,302.42
  4. Step 4: Simplify right side
    81,572.22x = 5,550,009,903.19
  5. Step 5: Solve for x
    x = 5,550,009,903.19/81,572.22
  6. Step 6: Final answer
    x = 68,037.99

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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.