Home / 55,899.53-77,143.07-30,407.75

Finding the Fourth Proportional to 55,899.53, 77,143.07 and 30,407.75

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Solution

The fourth proportional to 55,899.53, 77,143.07 and 30,407.75 is: 41,963.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,899.53 : 77,143.07 = 30,407.75 : x
  2. Step 2: Convert to fraction form
    55,899.53/77,143.07 = 30,407.75/x
  3. Step 3: Cross multiply
    55,899.53x = 77,143.07 × 30,407.75
  4. Step 4: Simplify right side
    55,899.53x = 2,345,746,877.10
  5. Step 5: Solve for x
    x = 2,345,746,877.10/55,899.53
  6. Step 6: Final answer
    x = 41,963.63

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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.