Home / 73,031.72-100,783.70-39,497.64

Finding the Fourth Proportional to 73,031.72, 100,783.70 and 39,497.64

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Solution

The fourth proportional to 73,031.72, 100,783.70 and 39,497.64 is: 54,506.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,031.72 : 100,783.70 = 39,497.64 : x
  2. Step 2: Convert to fraction form
    73,031.72/100,783.70 = 39,497.64/x
  3. Step 3: Cross multiply
    73,031.72x = 100,783.70 × 39,497.64
  4. Step 4: Simplify right side
    73,031.72x = 3,980,718,300.47
  5. Step 5: Solve for x
    x = 3,980,718,300.47/73,031.72
  6. Step 6: Final answer
    x = 54,506.70

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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.