Home / 55,900.64-77,143.86-30,407.56

Finding the Fourth Proportional to 55,900.64, 77,143.86 and 30,407.56

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Solution

The fourth proportional to 55,900.64, 77,143.86 and 30,407.56 is: 41,962.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,900.64 : 77,143.86 = 30,407.56 : x
  2. Step 2: Convert to fraction form
    55,900.64/77,143.86 = 30,407.56/x
  3. Step 3: Cross multiply
    55,900.64x = 77,143.86 × 30,407.56
  4. Step 4: Simplify right side
    55,900.64x = 2,345,756,551.58
  5. Step 5: Solve for x
    x = 2,345,756,551.58/55,900.64
  6. Step 6: Final answer
    x = 41,962.96

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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.