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Finding the Fourth Proportional to 64,123.40, 96,069.90 and 54,907.40

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Solution

The fourth proportional to 64,123.40, 96,069.90 and 54,907.40 is: 82,262.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,123.40 : 96,069.90 = 54,907.40 : x
  2. Step 2: Convert to fraction form
    64,123.40/96,069.90 = 54,907.40/x
  3. Step 3: Cross multiply
    64,123.40x = 96,069.90 × 54,907.40
  4. Step 4: Simplify right side
    64,123.40x = 5,274,948,427.26
  5. Step 5: Solve for x
    x = 5,274,948,427.26/64,123.40
  6. Step 6: Final answer
    x = 82,262.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.