Home / 99,739.02-149,479.27-40,505.88

Finding the Fourth Proportional to 99,739.02, 149,479.27 and 40,505.88

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Solution

The fourth proportional to 99,739.02, 149,479.27 and 40,505.88 is: 60,706.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,739.02 : 149,479.27 = 40,505.88 : x
  2. Step 2: Convert to fraction form
    99,739.02/149,479.27 = 40,505.88/x
  3. Step 3: Cross multiply
    99,739.02x = 149,479.27 × 40,505.88
  4. Step 4: Simplify right side
    99,739.02x = 6,054,789,271.84
  5. Step 5: Solve for x
    x = 6,054,789,271.84/99,739.02
  6. Step 6: Final answer
    x = 60,706.32

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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.