Home / 51,950.09-78,065.82-28,275.14

Finding the Fourth Proportional to 51,950.09, 78,065.82 and 28,275.14

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Solution

The fourth proportional to 51,950.09, 78,065.82 and 28,275.14 is: 42,489.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,950.09 : 78,065.82 = 28,275.14 : x
  2. Step 2: Convert to fraction form
    51,950.09/78,065.82 = 28,275.14/x
  3. Step 3: Cross multiply
    51,950.09x = 78,065.82 × 28,275.14
  4. Step 4: Simplify right side
    51,950.09x = 2,207,321,989.71
  5. Step 5: Solve for x
    x = 2,207,321,989.71/51,950.09
  6. Step 6: Final answer
    x = 42,489.28

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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.