Home / 75,427.58-104,082.90-45,207.30

Finding the Fourth Proportional to 75,427.58, 104,082.90 and 45,207.30

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Solution

The fourth proportional to 75,427.58, 104,082.90 and 45,207.30 is: 62,381.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,427.58 : 104,082.90 = 45,207.30 : x
  2. Step 2: Convert to fraction form
    75,427.58/104,082.90 = 45,207.30/x
  3. Step 3: Cross multiply
    75,427.58x = 104,082.90 × 45,207.30
  4. Step 4: Simplify right side
    75,427.58x = 4,705,306,885.17
  5. Step 5: Solve for x
    x = 4,705,306,885.17/75,427.58
  6. Step 6: Final answer
    x = 62,381.78

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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.