Home / 43,146.76-64,780.08-28,450.12

Finding the Fourth Proportional to 43,146.76, 64,780.08 and 28,450.12

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Solution

The fourth proportional to 43,146.76, 64,780.08 and 28,450.12 is: 42,714.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,146.76 : 64,780.08 = 28,450.12 : x
  2. Step 2: Convert to fraction form
    43,146.76/64,780.08 = 28,450.12/x
  3. Step 3: Cross multiply
    43,146.76x = 64,780.08 × 28,450.12
  4. Step 4: Simplify right side
    43,146.76x = 1,843,001,049.61
  5. Step 5: Solve for x
    x = 1,843,001,049.61/43,146.76
  6. Step 6: Final answer
    x = 42,714.70

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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.