Home / 70,890.30-106,335.44-20,966.51

Finding the Fourth Proportional to 70,890.30, 106,335.44 and 20,966.51

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Solution

The fourth proportional to 70,890.30, 106,335.44 and 20,966.51 is: 31,449.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,890.30 : 106,335.44 = 20,966.51 : x
  2. Step 2: Convert to fraction form
    70,890.30/106,335.44 = 20,966.51/x
  3. Step 3: Cross multiply
    70,890.30x = 106,335.44 × 20,966.51
  4. Step 4: Simplify right side
    70,890.30x = 2,229,482,429.60
  5. Step 5: Solve for x
    x = 2,229,482,429.60/70,890.30
  6. Step 6: Final answer
    x = 31,449.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.