Home / 56,189.35-77,632.46-55,636.39

Finding the Fourth Proportional to 56,189.35, 77,632.46 and 55,636.39

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Solution

The fourth proportional to 56,189.35, 77,632.46 and 55,636.39 is: 76,868.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,189.35 : 77,632.46 = 55,636.39 : x
  2. Step 2: Convert to fraction form
    56,189.35/77,632.46 = 55,636.39/x
  3. Step 3: Cross multiply
    56,189.35x = 77,632.46 × 55,636.39
  4. Step 4: Simplify right side
    56,189.35x = 4,319,189,821.22
  5. Step 5: Solve for x
    x = 4,319,189,821.22/56,189.35
  6. Step 6: Final answer
    x = 76,868.48

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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.