Home / 85,527.72-128,204.10-43,329.60

Finding the Fourth Proportional to 85,527.72, 128,204.10 and 43,329.60

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Solution

The fourth proportional to 85,527.72, 128,204.10 and 43,329.60 is: 64,950.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,527.72 : 128,204.10 = 43,329.60 : x
  2. Step 2: Convert to fraction form
    85,527.72/128,204.10 = 43,329.60/x
  3. Step 3: Cross multiply
    85,527.72x = 128,204.10 × 43,329.60
  4. Step 4: Simplify right side
    85,527.72x = 5,555,032,371.36
  5. Step 5: Solve for x
    x = 5,555,032,371.36/85,527.72
  6. Step 6: Final answer
    x = 64,950.08

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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.