Home / 45,421.01-68,134.40-14,257.49

Finding the Fourth Proportional to 45,421.01, 68,134.40 and 14,257.49

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Solution

The fourth proportional to 45,421.01, 68,134.40 and 14,257.49 is: 21,387.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,421.01 : 68,134.40 = 14,257.49 : x
  2. Step 2: Convert to fraction form
    45,421.01/68,134.40 = 14,257.49/x
  3. Step 3: Cross multiply
    45,421.01x = 68,134.40 × 14,257.49
  4. Step 4: Simplify right side
    45,421.01x = 971,425,455.37
  5. Step 5: Solve for x
    x = 971,425,455.37/45,421.01
  6. Step 6: Final answer
    x = 21,387.14

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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.