Home / 81,271.68-112,163.36-46,817.61

Finding the Fourth Proportional to 81,271.68, 112,163.36 and 46,817.61

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Solution

The fourth proportional to 81,271.68, 112,163.36 and 46,817.61 is: 64,613.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,271.68 : 112,163.36 = 46,817.61 : x
  2. Step 2: Convert to fraction form
    81,271.68/112,163.36 = 46,817.61/x
  3. Step 3: Cross multiply
    81,271.68x = 112,163.36 × 46,817.61
  4. Step 4: Simplify right side
    81,271.68x = 5,251,219,921.74
  5. Step 5: Solve for x
    x = 5,251,219,921.74/81,271.68
  6. Step 6: Final answer
    x = 64,613.16

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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.