Home / 84,485.09-126,769.86-39,487.57

Finding the Fourth Proportional to 84,485.09, 126,769.86 and 39,487.57

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Solution

The fourth proportional to 84,485.09, 126,769.86 and 39,487.57 is: 59,251.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,485.09 : 126,769.86 = 39,487.57 : x
  2. Step 2: Convert to fraction form
    84,485.09/126,769.86 = 39,487.57/x
  3. Step 3: Cross multiply
    84,485.09x = 126,769.86 × 39,487.57
  4. Step 4: Simplify right side
    84,485.09x = 5,005,833,403.72
  5. Step 5: Solve for x
    x = 5,005,833,403.72/84,485.09
  6. Step 6: Final answer
    x = 59,251.09

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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.