Home / 51,386.93-77,085.53-13,947.61

Finding the Fourth Proportional to 51,386.93, 77,085.53 and 13,947.61

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Solution

The fourth proportional to 51,386.93, 77,085.53 and 13,947.61 is: 20,922.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,386.93 : 77,085.53 = 13,947.61 : x
  2. Step 2: Convert to fraction form
    51,386.93/77,085.53 = 13,947.61/x
  3. Step 3: Cross multiply
    51,386.93x = 77,085.53 × 13,947.61
  4. Step 4: Simplify right side
    51,386.93x = 1,075,158,453.92
  5. Step 5: Solve for x
    x = 1,075,158,453.92/51,386.93
  6. Step 6: Final answer
    x = 20,922.80

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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.