Home / 56,119.85-77,447.03-30,627.86

Finding the Fourth Proportional to 56,119.85, 77,447.03 and 30,627.86

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Solution

The fourth proportional to 56,119.85, 77,447.03 and 30,627.86 is: 42,267.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,119.85 : 77,447.03 = 30,627.86 : x
  2. Step 2: Convert to fraction form
    56,119.85/77,447.03 = 30,627.86/x
  3. Step 3: Cross multiply
    56,119.85x = 77,447.03 × 30,627.86
  4. Step 4: Simplify right side
    56,119.85x = 2,372,036,792.26
  5. Step 5: Solve for x
    x = 2,372,036,792.26/56,119.85
  6. Step 6: Final answer
    x = 42,267.34

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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.