Home / 81,476.15-121,958.51-56,027.16

Finding the Fourth Proportional to 81,476.15, 121,958.51 and 56,027.16

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Solution

The fourth proportional to 81,476.15, 121,958.51 and 56,027.16 is: 83,864.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,476.15 : 121,958.51 = 56,027.16 : x
  2. Step 2: Convert to fraction form
    81,476.15/121,958.51 = 56,027.16/x
  3. Step 3: Cross multiply
    81,476.15x = 121,958.51 × 56,027.16
  4. Step 4: Simplify right side
    81,476.15x = 6,832,988,673.00
  5. Step 5: Solve for x
    x = 6,832,988,673.00/81,476.15
  6. Step 6: Final answer
    x = 83,864.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.