Home / 97,421.82-134,439.39-54,984.30

Finding the Fourth Proportional to 97,421.82, 134,439.39 and 54,984.30

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Solution

The fourth proportional to 97,421.82, 134,439.39 and 54,984.30 is: 75,876.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,421.82 : 134,439.39 = 54,984.30 : x
  2. Step 2: Convert to fraction form
    97,421.82/134,439.39 = 54,984.30/x
  3. Step 3: Cross multiply
    97,421.82x = 134,439.39 × 54,984.30
  4. Step 4: Simplify right side
    97,421.82x = 7,392,055,751.58
  5. Step 5: Solve for x
    x = 7,392,055,751.58/97,421.82
  6. Step 6: Final answer
    x = 75,876.80

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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.