Home / 54,443.09-75,129.53-30,570.77

Finding the Fourth Proportional to 54,443.09, 75,129.53 and 30,570.77

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Solution

The fourth proportional to 54,443.09, 75,129.53 and 30,570.77 is: 42,186.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,443.09 : 75,129.53 = 30,570.77 : x
  2. Step 2: Convert to fraction form
    54,443.09/75,129.53 = 30,570.77/x
  3. Step 3: Cross multiply
    54,443.09x = 75,129.53 × 30,570.77
  4. Step 4: Simplify right side
    54,443.09x = 2,296,767,616.81
  5. Step 5: Solve for x
    x = 2,296,767,616.81/54,443.09
  6. Step 6: Final answer
    x = 42,186.58

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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.