Home / 81,271.77-112,164.35-45,470.85

Finding the Fourth Proportional to 81,271.77, 112,164.35 and 45,470.85

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Solution

The fourth proportional to 81,271.77, 112,164.35 and 45,470.85 is: 62,754.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,271.77 : 112,164.35 = 45,470.85 : x
  2. Step 2: Convert to fraction form
    81,271.77/112,164.35 = 45,470.85/x
  3. Step 3: Cross multiply
    81,271.77x = 112,164.35 × 45,470.85
  4. Step 4: Simplify right side
    81,271.77x = 5,100,208,106.84
  5. Step 5: Solve for x
    x = 5,100,208,106.84/81,271.77
  6. Step 6: Final answer
    x = 62,754.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.