Home / 81,184.92-121,580.56-56,154.72

Finding the Fourth Proportional to 81,184.92, 121,580.56 and 56,154.72

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Solution

The fourth proportional to 81,184.92, 121,580.56 and 56,154.72 is: 84,095.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,184.92 : 121,580.56 = 56,154.72 : x
  2. Step 2: Convert to fraction form
    81,184.92/121,580.56 = 56,154.72/x
  3. Step 3: Cross multiply
    81,184.92x = 121,580.56 × 56,154.72
  4. Step 4: Simplify right side
    81,184.92x = 6,827,322,304.24
  5. Step 5: Solve for x
    x = 6,827,322,304.24/81,184.92
  6. Step 6: Final answer
    x = 84,095.94

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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.