Home / 52,486.30-72,431.13-28,612.99

Finding the Fourth Proportional to 52,486.30, 72,431.13 and 28,612.99

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Solution

The fourth proportional to 52,486.30, 72,431.13 and 28,612.99 is: 39,485.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,486.30 : 72,431.13 = 28,612.99 : x
  2. Step 2: Convert to fraction form
    52,486.30/72,431.13 = 28,612.99/x
  3. Step 3: Cross multiply
    52,486.30x = 72,431.13 × 28,612.99
  4. Step 4: Simplify right side
    52,486.30x = 2,072,471,198.38
  5. Step 5: Solve for x
    x = 2,072,471,198.38/52,486.30
  6. Step 6: Final answer
    x = 39,485.95

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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.