Home / 99,983.55-149,975.43-40,039.10

Finding the Fourth Proportional to 99,983.55, 149,975.43 and 40,039.10

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Solution

The fourth proportional to 99,983.55, 149,975.43 and 40,039.10 is: 60,058.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,983.55 : 149,975.43 = 40,039.10 : x
  2. Step 2: Convert to fraction form
    99,983.55/149,975.43 = 40,039.10/x
  3. Step 3: Cross multiply
    99,983.55x = 149,975.43 × 40,039.10
  4. Step 4: Simplify right side
    99,983.55x = 6,004,881,239.31
  5. Step 5: Solve for x
    x = 6,004,881,239.31/99,983.55
  6. Step 6: Final answer
    x = 60,058.69

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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.