Home / 81,627.34-112,641.94-45,331.09

Finding the Fourth Proportional to 81,627.34, 112,641.94 and 45,331.09

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Solution

The fourth proportional to 81,627.34, 112,641.94 and 45,331.09 is: 62,554.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,627.34 : 112,641.94 = 45,331.09 : x
  2. Step 2: Convert to fraction form
    81,627.34/112,641.94 = 45,331.09/x
  3. Step 3: Cross multiply
    81,627.34x = 112,641.94 × 45,331.09
  4. Step 4: Simplify right side
    81,627.34x = 5,106,181,806.59
  5. Step 5: Solve for x
    x = 5,106,181,806.59/81,627.34
  6. Step 6: Final answer
    x = 62,554.80

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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.