Home / 45,346.40-68,019.60-42,940.70

Finding the Fourth Proportional to 45,346.40, 68,019.60 and 42,940.70

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Solution

The fourth proportional to 45,346.40, 68,019.60 and 42,940.70 is: 64,411.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,346.40 : 68,019.60 = 42,940.70 : x
  2. Step 2: Convert to fraction form
    45,346.40/68,019.60 = 42,940.70/x
  3. Step 3: Cross multiply
    45,346.40x = 68,019.60 × 42,940.70
  4. Step 4: Simplify right side
    45,346.40x = 2,920,809,237.72
  5. Step 5: Solve for x
    x = 2,920,809,237.72/45,346.40
  6. Step 6: Final answer
    x = 64,411.05

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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.