Home / 55,916.09-77,164.38-30,422.45

Finding the Fourth Proportional to 55,916.09, 77,164.38 and 30,422.45

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Solution

The fourth proportional to 55,916.09, 77,164.38 and 30,422.45 is: 41,983.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,916.09 : 77,164.38 = 30,422.45 : x
  2. Step 2: Convert to fraction form
    55,916.09/77,164.38 = 30,422.45/x
  3. Step 3: Cross multiply
    55,916.09x = 77,164.38 × 30,422.45
  4. Step 4: Simplify right side
    55,916.09x = 2,347,529,106.51
  5. Step 5: Solve for x
    x = 2,347,529,106.51/55,916.09
  6. Step 6: Final answer
    x = 41,983.07

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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.