Home / 51,228.48-76,839.95-19,653.68

Finding the Fourth Proportional to 51,228.48, 76,839.95 and 19,653.68

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Solution

The fourth proportional to 51,228.48, 76,839.95 and 19,653.68 is: 29,479.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,228.48 : 76,839.95 = 19,653.68 : x
  2. Step 2: Convert to fraction form
    51,228.48/76,839.95 = 19,653.68/x
  3. Step 3: Cross multiply
    51,228.48x = 76,839.95 × 19,653.68
  4. Step 4: Simplify right side
    51,228.48x = 1,510,187,306.05
  5. Step 5: Solve for x
    x = 1,510,187,306.05/51,228.48
  6. Step 6: Final answer
    x = 29,479.45

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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.