Home / 55,896.21-77,136.96-30,402.57

Finding the Fourth Proportional to 55,896.21, 77,136.96 and 30,402.57

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Solution

The fourth proportional to 55,896.21, 77,136.96 and 30,402.57 is: 41,955.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,896.21 : 77,136.96 = 30,402.57 : x
  2. Step 2: Convert to fraction form
    55,896.21/77,136.96 = 30,402.57/x
  3. Step 3: Cross multiply
    55,896.21x = 77,136.96 × 30,402.57
  4. Step 4: Simplify right side
    55,896.21x = 2,345,161,825.99
  5. Step 5: Solve for x
    x = 2,345,161,825.99/55,896.21
  6. Step 6: Final answer
    x = 41,955.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.