Home / 51,025.28-70,416.41-30,885.85

Finding the Fourth Proportional to 51,025.28, 70,416.41 and 30,885.85

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Solution

The fourth proportional to 51,025.28, 70,416.41 and 30,885.85 is: 42,623.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,025.28 : 70,416.41 = 30,885.85 : x
  2. Step 2: Convert to fraction form
    51,025.28/70,416.41 = 30,885.85/x
  3. Step 3: Cross multiply
    51,025.28x = 70,416.41 × 30,885.85
  4. Step 4: Simplify right side
    51,025.28x = 2,174,870,676.80
  5. Step 5: Solve for x
    x = 2,174,870,676.80/51,025.28
  6. Step 6: Final answer
    x = 42,623.40

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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.