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Finding the Fourth Proportional to 82,803.60, 114,269.40 and 45,078.12

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Solution

The fourth proportional to 82,803.60, 114,269.40 and 45,078.12 is: 62,208.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,803.60 : 114,269.40 = 45,078.12 : x
  2. Step 2: Convert to fraction form
    82,803.60/114,269.40 = 45,078.12/x
  3. Step 3: Cross multiply
    82,803.60x = 114,269.40 × 45,078.12
  4. Step 4: Simplify right side
    82,803.60x = 5,151,049,725.53
  5. Step 5: Solve for x
    x = 5,151,049,725.53/82,803.60
  6. Step 6: Final answer
    x = 62,208.04

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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.