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Finding the Fourth Proportional to 73,612.05, 101,584.64 and 40,078.05

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Solution

The fourth proportional to 73,612.05, 101,584.64 and 40,078.05 is: 55,307.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,612.05 : 101,584.64 = 40,078.05 : x
  2. Step 2: Convert to fraction form
    73,612.05/101,584.64 = 40,078.05/x
  3. Step 3: Cross multiply
    73,612.05x = 101,584.64 × 40,078.05
  4. Step 4: Simplify right side
    73,612.05x = 4,071,314,080.76
  5. Step 5: Solve for x
    x = 4,071,314,080.76/73,612.05
  6. Step 6: Final answer
    x = 55,307.71

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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.