Home / 74,756.10-112,134.15-51,311.46

Finding the Fourth Proportional to 74,756.10, 112,134.15 and 51,311.46

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Solution

The fourth proportional to 74,756.10, 112,134.15 and 51,311.46 is: 76,967.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,756.10 : 112,134.15 = 51,311.46 : x
  2. Step 2: Convert to fraction form
    74,756.10/112,134.15 = 51,311.46/x
  3. Step 3: Cross multiply
    74,756.10x = 112,134.15 × 51,311.46
  4. Step 4: Simplify right side
    74,756.10x = 5,753,766,952.36
  5. Step 5: Solve for x
    x = 5,753,766,952.36/74,756.10
  6. Step 6: Final answer
    x = 76,967.19

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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.