Home / 61,720.40-85,174.20-34,862.96

Finding the Fourth Proportional to 61,720.40, 85,174.20 and 34,862.96

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Solution

The fourth proportional to 61,720.40, 85,174.20 and 34,862.96 is: 48,110.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,720.40 : 85,174.20 = 34,862.96 : x
  2. Step 2: Convert to fraction form
    61,720.40/85,174.20 = 34,862.96/x
  3. Step 3: Cross multiply
    61,720.40x = 85,174.20 × 34,862.96
  4. Step 4: Simplify right side
    61,720.40x = 2,969,424,727.63
  5. Step 5: Solve for x
    x = 2,969,424,727.63/61,720.40
  6. Step 6: Final answer
    x = 48,110.91

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1.5x scale

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.