Home / 84,319.57-126,441.69-25,139.35

Finding the Fourth Proportional to 84,319.57, 126,441.69 and 25,139.35

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Solution

The fourth proportional to 84,319.57, 126,441.69 and 25,139.35 is: 37,697.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,319.57 : 126,441.69 = 25,139.35 : x
  2. Step 2: Convert to fraction form
    84,319.57/126,441.69 = 25,139.35/x
  3. Step 3: Cross multiply
    84,319.57x = 126,441.69 × 25,139.35
  4. Step 4: Simplify right side
    84,319.57x = 3,178,661,899.50
  5. Step 5: Solve for x
    x = 3,178,661,899.50/84,319.57
  6. Step 6: Final answer
    x = 37,697.80

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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.