Home / 55,564.40-76,678.26-30,070.20

Finding the Fourth Proportional to 55,564.40, 76,678.26 and 30,070.20

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Solution

The fourth proportional to 55,564.40, 76,678.26 and 30,070.20 is: 41,496.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,564.40 : 76,678.26 = 30,070.20 : x
  2. Step 2: Convert to fraction form
    55,564.40/76,678.26 = 30,070.20/x
  3. Step 3: Cross multiply
    55,564.40x = 76,678.26 × 30,070.20
  4. Step 4: Simplify right side
    55,564.40x = 2,305,730,613.85
  5. Step 5: Solve for x
    x = 2,305,730,613.85/55,564.40
  6. Step 6: Final answer
    x = 41,496.55

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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.