Home / 81,043.34-111,705.95-54,176.04

Finding the Fourth Proportional to 81,043.34, 111,705.95 and 54,176.04

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Solution

The fourth proportional to 81,043.34, 111,705.95 and 54,176.04 is: 74,673.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,043.34 : 111,705.95 = 54,176.04 : x
  2. Step 2: Convert to fraction form
    81,043.34/111,705.95 = 54,176.04/x
  3. Step 3: Cross multiply
    81,043.34x = 111,705.95 × 54,176.04
  4. Step 4: Simplify right side
    81,043.34x = 6,051,785,744.56
  5. Step 5: Solve for x
    x = 6,051,785,744.56/81,043.34
  6. Step 6: Final answer
    x = 74,673.45

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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.