Home / 49,341.20-74,011.80-45,539.60

Finding the Fourth Proportional to 49,341.20, 74,011.80 and 45,539.60

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Solution

The fourth proportional to 49,341.20, 74,011.80 and 45,539.60 is: 68,309.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,341.20 : 74,011.80 = 45,539.60 : x
  2. Step 2: Convert to fraction form
    49,341.20/74,011.80 = 45,539.60/x
  3. Step 3: Cross multiply
    49,341.20x = 74,011.80 × 45,539.60
  4. Step 4: Simplify right side
    49,341.20x = 3,370,467,767.28
  5. Step 5: Solve for x
    x = 3,370,467,767.28/49,341.20
  6. Step 6: Final answer
    x = 68,309.40

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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.