Home / 99,515.72-149,271.26-40,335.56

Finding the Fourth Proportional to 99,515.72, 149,271.26 and 40,335.56

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Solution

The fourth proportional to 99,515.72, 149,271.26 and 40,335.56 is: 60,502.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,515.72 : 149,271.26 = 40,335.56 : x
  2. Step 2: Convert to fraction form
    99,515.72/149,271.26 = 40,335.56/x
  3. Step 3: Cross multiply
    99,515.72x = 149,271.26 × 40,335.56
  4. Step 4: Simplify right side
    99,515.72x = 6,020,939,864.01
  5. Step 5: Solve for x
    x = 6,020,939,864.01/99,515.72
  6. Step 6: Final answer
    x = 60,502.40

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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.