Home / 51,387.58-70,910.94-31,241.67

Finding the Fourth Proportional to 51,387.58, 70,910.94 and 31,241.67

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Solution

The fourth proportional to 51,387.58, 70,910.94 and 31,241.67 is: 43,111.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,387.58 : 70,910.94 = 31,241.67 : x
  2. Step 2: Convert to fraction form
    51,387.58/70,910.94 = 31,241.67/x
  3. Step 3: Cross multiply
    51,387.58x = 70,910.94 × 31,241.67
  4. Step 4: Simplify right side
    51,387.58x = 2,215,376,038.11
  5. Step 5: Solve for x
    x = 2,215,376,038.11/51,387.58
  6. Step 6: Final answer
    x = 43,111.12

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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.