Home / 65,490.28-98,237.82-21,117.67

Finding the Fourth Proportional to 65,490.28, 98,237.82 and 21,117.67

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Solution

The fourth proportional to 65,490.28, 98,237.82 and 21,117.67 is: 31,677.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,490.28 : 98,237.82 = 21,117.67 : x
  2. Step 2: Convert to fraction form
    65,490.28/98,237.82 = 21,117.67/x
  3. Step 3: Cross multiply
    65,490.28x = 98,237.82 × 21,117.67
  4. Step 4: Simplify right side
    65,490.28x = 2,074,553,864.28
  5. Step 5: Solve for x
    x = 2,074,553,864.28/65,490.28
  6. Step 6: Final answer
    x = 31,677.28

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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.