Home / 49,570.16-74,364.77-19,990.99

Finding the Fourth Proportional to 49,570.16, 74,364.77 and 19,990.99

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Solution

The fourth proportional to 49,570.16, 74,364.77 and 19,990.99 is: 29,990.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,570.16 : 74,364.77 = 19,990.99 : x
  2. Step 2: Convert to fraction form
    49,570.16/74,364.77 = 19,990.99/x
  3. Step 3: Cross multiply
    49,570.16x = 74,364.77 × 19,990.99
  4. Step 4: Simplify right side
    49,570.16x = 1,486,625,373.42
  5. Step 5: Solve for x
    x = 1,486,625,373.42/49,570.16
  6. Step 6: Final answer
    x = 29,990.33

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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.