Home / 82,455.84-123,518.88-38,021.76

Finding the Fourth Proportional to 82,455.84, 123,518.88 and 38,021.76

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Solution

The fourth proportional to 82,455.84, 123,518.88 and 38,021.76 is: 56,956.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,455.84 : 123,518.88 = 38,021.76 : x
  2. Step 2: Convert to fraction form
    82,455.84/123,518.88 = 38,021.76/x
  3. Step 3: Cross multiply
    82,455.84x = 123,518.88 × 38,021.76
  4. Step 4: Simplify right side
    82,455.84x = 4,696,405,210.83
  5. Step 5: Solve for x
    x = 4,696,405,210.83/82,455.84
  6. Step 6: Final answer
    x = 56,956.61

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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.