Home / 55,648.07-76,798.10-31,440.64

Finding the Fourth Proportional to 55,648.07, 76,798.10 and 31,440.64

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Solution

The fourth proportional to 55,648.07, 76,798.10 and 31,440.64 is: 43,390.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,648.07 : 76,798.10 = 31,440.64 : x
  2. Step 2: Convert to fraction form
    55,648.07/76,798.10 = 31,440.64/x
  3. Step 3: Cross multiply
    55,648.07x = 76,798.10 × 31,440.64
  4. Step 4: Simplify right side
    55,648.07x = 2,414,581,414.78
  5. Step 5: Solve for x
    x = 2,414,581,414.78/55,648.07
  6. Step 6: Final answer
    x = 43,390.21

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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.