Home / 55,382.32-76,417.38-31,507.60

Finding the Fourth Proportional to 55,382.32, 76,417.38 and 31,507.60

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Solution

The fourth proportional to 55,382.32, 76,417.38 and 31,507.60 is: 43,474.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,382.32 : 76,417.38 = 31,507.60 : x
  2. Step 2: Convert to fraction form
    55,382.32/76,417.38 = 31,507.60/x
  3. Step 3: Cross multiply
    55,382.32x = 76,417.38 × 31,507.60
  4. Step 4: Simplify right side
    55,382.32x = 2,407,728,242.09
  5. Step 5: Solve for x
    x = 2,407,728,242.09/55,382.32
  6. Step 6: Final answer
    x = 43,474.67

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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.