Home / 51,718.42-77,584.83-18,428.59

Finding the Fourth Proportional to 51,718.42, 77,584.83 and 18,428.59

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Solution

The fourth proportional to 51,718.42, 77,584.83 and 18,428.59 is: 27,645.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,718.42 : 77,584.83 = 18,428.59 : x
  2. Step 2: Convert to fraction form
    51,718.42/77,584.83 = 18,428.59/x
  3. Step 3: Cross multiply
    51,718.42x = 77,584.83 × 18,428.59
  4. Step 4: Simplify right side
    51,718.42x = 1,429,779,022.29
  5. Step 5: Solve for x
    x = 1,429,779,022.29/51,718.42
  6. Step 6: Final answer
    x = 27,645.45

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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.