Home / 43,340.77-64,894.31-28,310.66

Finding the Fourth Proportional to 43,340.77, 64,894.31 and 28,310.66

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Solution

The fourth proportional to 43,340.77, 64,894.31 and 28,310.66 is: 42,389.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,340.77 : 64,894.31 = 28,310.66 : x
  2. Step 2: Convert to fraction form
    43,340.77/64,894.31 = 28,310.66/x
  3. Step 3: Cross multiply
    43,340.77x = 64,894.31 × 28,310.66
  4. Step 4: Simplify right side
    43,340.77x = 1,837,200,604.79
  5. Step 5: Solve for x
    x = 1,837,200,604.79/43,340.77
  6. Step 6: Final answer
    x = 42,389.67

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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.