Home / 67,885.16-101,828.14-20,500.36

Finding the Fourth Proportional to 67,885.16, 101,828.14 and 20,500.36

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Solution

The fourth proportional to 67,885.16, 101,828.14 and 20,500.36 is: 30,750.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,885.16 : 101,828.14 = 20,500.36 : x
  2. Step 2: Convert to fraction form
    67,885.16/101,828.14 = 20,500.36/x
  3. Step 3: Cross multiply
    67,885.16x = 101,828.14 × 20,500.36
  4. Step 4: Simplify right side
    67,885.16x = 2,087,513,528.13
  5. Step 5: Solve for x
    x = 2,087,513,528.13/67,885.16
  6. Step 6: Final answer
    x = 30,750.66

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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.