Home / 55,555.50-76,668.21-30,406.62

Finding the Fourth Proportional to 55,555.50, 76,668.21 and 30,406.62

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Solution

The fourth proportional to 55,555.50, 76,668.21 and 30,406.62 is: 41,962.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,555.50 : 76,668.21 = 30,406.62 : x
  2. Step 2: Convert to fraction form
    55,555.50/76,668.21 = 30,406.62/x
  3. Step 3: Cross multiply
    55,555.50x = 76,668.21 × 30,406.62
  4. Step 4: Simplify right side
    55,555.50x = 2,331,221,127.55
  5. Step 5: Solve for x
    x = 2,331,221,127.55/55,555.50
  6. Step 6: Final answer
    x = 41,962.02

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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.