Home / 55,513.28-76,599.34-31,640.40

Finding the Fourth Proportional to 55,513.28, 76,599.34 and 31,640.40

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Solution

The fourth proportional to 55,513.28, 76,599.34 and 31,640.40 is: 43,658.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,513.28 : 76,599.34 = 31,640.40 : x
  2. Step 2: Convert to fraction form
    55,513.28/76,599.34 = 31,640.40/x
  3. Step 3: Cross multiply
    55,513.28x = 76,599.34 × 31,640.40
  4. Step 4: Simplify right side
    55,513.28x = 2,423,633,757.34
  5. Step 5: Solve for x
    x = 2,423,633,757.34/55,513.28
  6. Step 6: Final answer
    x = 43,658.63

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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.