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Finding the Fourth Proportional to 54,330.30, 81,495.45 and 45,582.30

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Solution

The fourth proportional to 54,330.30, 81,495.45 and 45,582.30 is: 68,373.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,330.30 : 81,495.45 = 45,582.30 : x
  2. Step 2: Convert to fraction form
    54,330.30/81,495.45 = 45,582.30/x
  3. Step 3: Cross multiply
    54,330.30x = 81,495.45 × 45,582.30
  4. Step 4: Simplify right side
    54,330.30x = 3,714,750,050.54
  5. Step 5: Solve for x
    x = 3,714,750,050.54/54,330.30
  6. Step 6: Final answer
    x = 68,373.45

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1.5x scale

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.