Home / 74,882.50-112,457.60-71,872.40

Finding the Fourth Proportional to 74,882.50, 112,457.60 and 71,872.40

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Solution

The fourth proportional to 74,882.50, 112,457.60 and 71,872.40 is: 107,937.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,882.50 : 112,457.60 = 71,872.40 : x
  2. Step 2: Convert to fraction form
    74,882.50/112,457.60 = 71,872.40/x
  3. Step 3: Cross multiply
    74,882.50x = 112,457.60 × 71,872.40
  4. Step 4: Simplify right side
    74,882.50x = 8,082,597,610.24
  5. Step 5: Solve for x
    x = 8,082,597,610.24/74,882.50
  6. Step 6: Final answer
    x = 107,937.07

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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.