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Finding the Fourth Proportional to 66,293.69, 99,440.54 and 54,582.30

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Solution

The fourth proportional to 66,293.69, 99,440.54 and 54,582.30 is: 81,873.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,293.69 : 99,440.54 = 54,582.30 : x
  2. Step 2: Convert to fraction form
    66,293.69/99,440.54 = 54,582.30/x
  3. Step 3: Cross multiply
    66,293.69x = 99,440.54 × 54,582.30
  4. Step 4: Simplify right side
    66,293.69x = 5,427,693,113.53
  5. Step 5: Solve for x
    x = 5,427,693,113.53/66,293.69
  6. Step 6: Final answer
    x = 81,873.46

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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.