Home / 67,431.56-101,192.42-27,988.67

Finding the Fourth Proportional to 67,431.56, 101,192.42 and 27,988.67

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Solution

The fourth proportional to 67,431.56, 101,192.42 and 27,988.67 is: 42,001.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,431.56 : 101,192.42 = 27,988.67 : x
  2. Step 2: Convert to fraction form
    67,431.56/101,192.42 = 27,988.67/x
  3. Step 3: Cross multiply
    67,431.56x = 101,192.42 × 27,988.67
  4. Step 4: Simplify right side
    67,431.56x = 2,832,241,572.83
  5. Step 5: Solve for x
    x = 2,832,241,572.83/67,431.56
  6. Step 6: Final answer
    x = 42,001.72

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1.5x scale

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.