Home / 55,313.24-76,314.03-31,431.20

Finding the Fourth Proportional to 55,313.24, 76,314.03 and 31,431.20

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Solution

The fourth proportional to 55,313.24, 76,314.03 and 31,431.20 is: 43,364.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,313.24 : 76,314.03 = 31,431.20 : x
  2. Step 2: Convert to fraction form
    55,313.24/76,314.03 = 31,431.20/x
  3. Step 3: Cross multiply
    55,313.24x = 76,314.03 × 31,431.20
  4. Step 4: Simplify right side
    55,313.24x = 2,398,641,539.74
  5. Step 5: Solve for x
    x = 2,398,641,539.74/55,313.24
  6. Step 6: Final answer
    x = 43,364.69

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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.