Home / 65,689.02-90,650.85-35,474.34

Finding the Fourth Proportional to 65,689.02, 90,650.85 and 35,474.34

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Solution

The fourth proportional to 65,689.02, 90,650.85 and 35,474.34 is: 48,954.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,689.02 : 90,650.85 = 35,474.34 : x
  2. Step 2: Convert to fraction form
    65,689.02/90,650.85 = 35,474.34/x
  3. Step 3: Cross multiply
    65,689.02x = 90,650.85 × 35,474.34
  4. Step 4: Simplify right side
    65,689.02x = 3,215,779,281.10
  5. Step 5: Solve for x
    x = 3,215,779,281.10/65,689.02
  6. Step 6: Final answer
    x = 48,954.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.