Home / 55,305.28-76,323.08-31,430.56

Finding the Fourth Proportional to 55,305.28, 76,323.08 and 31,430.56

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Solution

The fourth proportional to 55,305.28, 76,323.08 and 31,430.56 is: 43,375.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,305.28 : 76,323.08 = 31,430.56 : x
  2. Step 2: Convert to fraction form
    55,305.28/76,323.08 = 31,430.56/x
  3. Step 3: Cross multiply
    55,305.28x = 76,323.08 × 31,430.56
  4. Step 4: Simplify right side
    55,305.28x = 2,398,877,145.32
  5. Step 5: Solve for x
    x = 2,398,877,145.32/55,305.28
  6. Step 6: Final answer
    x = 43,375.19

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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.