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Finding the Fourth Proportional to 97,407.39, 134,420.87 and 54,387.54

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Solution

The fourth proportional to 97,407.39, 134,420.87 and 54,387.54 is: 75,054.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,407.39 : 134,420.87 = 54,387.54 : x
  2. Step 2: Convert to fraction form
    97,407.39/134,420.87 = 54,387.54/x
  3. Step 3: Cross multiply
    97,407.39x = 134,420.87 × 54,387.54
  4. Step 4: Simplify right side
    97,407.39x = 7,310,820,443.96
  5. Step 5: Solve for x
    x = 7,310,820,443.96/97,407.39
  6. Step 6: Final answer
    x = 75,054.06

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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.