Home / 97,139.45-145,711.91-27,018.77

Finding the Fourth Proportional to 97,139.45, 145,711.91 and 27,018.77

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Solution

The fourth proportional to 97,139.45, 145,711.91 and 27,018.77 is: 40,528.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,139.45 : 145,711.91 = 27,018.77 : x
  2. Step 2: Convert to fraction form
    97,139.45/145,711.91 = 27,018.77/x
  3. Step 3: Cross multiply
    97,139.45x = 145,711.91 × 27,018.77
  4. Step 4: Simplify right side
    97,139.45x = 3,936,955,921.54
  5. Step 5: Solve for x
    x = 3,936,955,921.54/97,139.45
  6. Step 6: Final answer
    x = 40,528.91

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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.