Home / 81,304.16-121,956.24-53,595.68

Finding the Fourth Proportional to 81,304.16, 121,956.24 and 53,595.68

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Solution

The fourth proportional to 81,304.16, 121,956.24 and 53,595.68 is: 80,393.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,304.16 : 121,956.24 = 53,595.68 : x
  2. Step 2: Convert to fraction form
    81,304.16/121,956.24 = 53,595.68/x
  3. Step 3: Cross multiply
    81,304.16x = 121,956.24 × 53,595.68
  4. Step 4: Simplify right side
    81,304.16x = 6,536,327,393.60
  5. Step 5: Solve for x
    x = 6,536,327,393.60/81,304.16
  6. Step 6: Final answer
    x = 80,393.52

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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.