Home / 65,360.85-98,032.02-20,981.76

Finding the Fourth Proportional to 65,360.85, 98,032.02 and 20,981.76

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Solution

The fourth proportional to 65,360.85, 98,032.02 and 20,981.76 is: 31,469.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,360.85 : 98,032.02 = 20,981.76 : x
  2. Step 2: Convert to fraction form
    65,360.85/98,032.02 = 20,981.76/x
  3. Step 3: Cross multiply
    65,360.85x = 98,032.02 × 20,981.76
  4. Step 4: Simplify right side
    65,360.85x = 2,056,884,315.96
  5. Step 5: Solve for x
    x = 2,056,884,315.96/65,360.85
  6. Step 6: Final answer
    x = 31,469.67

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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.