Home / 45,205.40-67,808.10-43,285.70

Finding the Fourth Proportional to 45,205.40, 67,808.10 and 43,285.70

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Solution

The fourth proportional to 45,205.40, 67,808.10 and 43,285.70 is: 64,928.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,205.40 : 67,808.10 = 43,285.70 : x
  2. Step 2: Convert to fraction form
    45,205.40/67,808.10 = 43,285.70/x
  3. Step 3: Cross multiply
    45,205.40x = 67,808.10 × 43,285.70
  4. Step 4: Simplify right side
    45,205.40x = 2,935,121,074.17
  5. Step 5: Solve for x
    x = 2,935,121,074.17/45,205.40
  6. Step 6: Final answer
    x = 64,928.55

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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.