Home / 81,424.06-112,367.42-45,613.30

Finding the Fourth Proportional to 81,424.06, 112,367.42 and 45,613.30

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Solution

The fourth proportional to 81,424.06, 112,367.42 and 45,613.30 is: 62,947.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,424.06 : 112,367.42 = 45,613.30 : x
  2. Step 2: Convert to fraction form
    81,424.06/112,367.42 = 45,613.30/x
  3. Step 3: Cross multiply
    81,424.06x = 112,367.42 × 45,613.30
  4. Step 4: Simplify right side
    81,424.06x = 5,125,448,838.69
  5. Step 5: Solve for x
    x = 5,125,448,838.69/81,424.06
  6. Step 6: Final answer
    x = 62,947.60

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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.