Home / 55,534.70-76,639.92-31,661.12

Finding the Fourth Proportional to 55,534.70, 76,639.92 and 31,661.12

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Solution

The fourth proportional to 55,534.70, 76,639.92 and 31,661.12 is: 43,693.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,534.70 : 76,639.92 = 31,661.12 : x
  2. Step 2: Convert to fraction form
    55,534.70/76,639.92 = 31,661.12/x
  3. Step 3: Cross multiply
    55,534.70x = 76,639.92 × 31,661.12
  4. Step 4: Simplify right side
    55,534.70x = 2,426,505,703.91
  5. Step 5: Solve for x
    x = 2,426,505,703.91/55,534.70
  6. Step 6: Final answer
    x = 43,693.51

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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.