Home / 73,918.14-102,007.35-40,384.86

Finding the Fourth Proportional to 73,918.14, 102,007.35 and 40,384.86

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Solution

The fourth proportional to 73,918.14, 102,007.35 and 40,384.86 is: 55,731.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,918.14 : 102,007.35 = 40,384.86 : x
  2. Step 2: Convert to fraction form
    73,918.14/102,007.35 = 40,384.86/x
  3. Step 3: Cross multiply
    73,918.14x = 102,007.35 × 40,384.86
  4. Step 4: Simplify right side
    73,918.14x = 4,119,552,548.72
  5. Step 5: Solve for x
    x = 4,119,552,548.72/73,918.14
  6. Step 6: Final answer
    x = 55,731.28

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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.