Home / 56,039.28-77,334.12-30,888.96

Finding the Fourth Proportional to 56,039.28, 77,334.12 and 30,888.96

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Solution

The fourth proportional to 56,039.28, 77,334.12 and 30,888.96 is: 42,626.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,039.28 : 77,334.12 = 30,888.96 : x
  2. Step 2: Convert to fraction form
    56,039.28/77,334.12 = 30,888.96/x
  3. Step 3: Cross multiply
    56,039.28x = 77,334.12 × 30,888.96
  4. Step 4: Simplify right side
    56,039.28x = 2,388,770,539.32
  5. Step 5: Solve for x
    x = 2,388,770,539.32/56,039.28
  6. Step 6: Final answer
    x = 42,626.72

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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.