Home / 55,379.40-76,422.59-31,505.56

Finding the Fourth Proportional to 55,379.40, 76,422.59 and 31,505.56

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Solution

The fourth proportional to 55,379.40, 76,422.59 and 31,505.56 is: 43,477.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,379.40 : 76,422.59 = 31,505.56 : x
  2. Step 2: Convert to fraction form
    55,379.40/76,422.59 = 31,505.56/x
  3. Step 3: Cross multiply
    55,379.40x = 76,422.59 × 31,505.56
  4. Step 4: Simplify right side
    55,379.40x = 2,407,736,264.16
  5. Step 5: Solve for x
    x = 2,407,736,264.16/55,379.40
  6. Step 6: Final answer
    x = 43,477.11

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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.