Home / 98,240.42-147,389.38-31,679.21

Finding the Fourth Proportional to 98,240.42, 147,389.38 and 31,679.21

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Solution

The fourth proportional to 98,240.42, 147,389.38 and 31,679.21 is: 47,528.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,240.42 : 147,389.38 = 31,679.21 : x
  2. Step 2: Convert to fraction form
    98,240.42/147,389.38 = 31,679.21/x
  3. Step 3: Cross multiply
    98,240.42x = 147,389.38 × 31,679.21
  4. Step 4: Simplify right side
    98,240.42x = 4,669,179,120.79
  5. Step 5: Solve for x
    x = 4,669,179,120.79/98,240.42
  6. Step 6: Final answer
    x = 47,528.09

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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.