Home / 55,079.31-76,009.65-29,928.81

Finding the Fourth Proportional to 55,079.31, 76,009.65 and 29,928.81

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Solution

The fourth proportional to 55,079.31, 76,009.65 and 29,928.81 is: 41,301.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,079.31 : 76,009.65 = 29,928.81 : x
  2. Step 2: Convert to fraction form
    55,079.31/76,009.65 = 29,928.81/x
  3. Step 3: Cross multiply
    55,079.31x = 76,009.65 × 29,928.81
  4. Step 4: Simplify right side
    55,079.31x = 2,274,878,373.02
  5. Step 5: Solve for x
    x = 2,274,878,373.02/55,079.31
  6. Step 6: Final answer
    x = 41,301.87

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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.