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Finding the Fourth Proportional to 54,373.80, 75,030.80 and 30,495.86

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Solution

The fourth proportional to 54,373.80, 75,030.80 and 30,495.86 is: 42,081.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,373.80 : 75,030.80 = 30,495.86 : x
  2. Step 2: Convert to fraction form
    54,373.80/75,030.80 = 30,495.86/x
  3. Step 3: Cross multiply
    54,373.80x = 75,030.80 × 30,495.86
  4. Step 4: Simplify right side
    54,373.80x = 2,288,128,772.49
  5. Step 5: Solve for x
    x = 2,288,128,772.49/54,373.80
  6. Step 6: Final answer
    x = 42,081.46

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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.