Home / 45,909.30-68,732.55-28,260.30

Finding the Fourth Proportional to 45,909.30, 68,732.55 and 28,260.30

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Solution

The fourth proportional to 45,909.30, 68,732.55 and 28,260.30 is: 42,309.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,909.30 : 68,732.55 = 28,260.30 : x
  2. Step 2: Convert to fraction form
    45,909.30/68,732.55 = 28,260.30/x
  3. Step 3: Cross multiply
    45,909.30x = 68,732.55 × 28,260.30
  4. Step 4: Simplify right side
    45,909.30x = 1,942,402,482.77
  5. Step 5: Solve for x
    x = 1,942,402,482.77/45,909.30
  6. Step 6: Final answer
    x = 42,309.56

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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.