Home / 74,201.62-102,400.86-53,031.46

Finding the Fourth Proportional to 74,201.62, 102,400.86 and 53,031.46

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Solution

The fourth proportional to 74,201.62, 102,400.86 and 53,031.46 is: 73,185.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,201.62 : 102,400.86 = 53,031.46 : x
  2. Step 2: Convert to fraction form
    74,201.62/102,400.86 = 53,031.46/x
  3. Step 3: Cross multiply
    74,201.62x = 102,400.86 × 53,031.46
  4. Step 4: Simplify right side
    74,201.62x = 5,430,467,111.06
  5. Step 5: Solve for x
    x = 5,430,467,111.06/74,201.62
  6. Step 6: Final answer
    x = 73,185.29

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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.