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Finding the Fourth Proportional to 61,300.53, 84,650.07 and 38,679.66

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Solution

The fourth proportional to 61,300.53, 84,650.07 and 38,679.66 is: 53,412.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,300.53 : 84,650.07 = 38,679.66 : x
  2. Step 2: Convert to fraction form
    61,300.53/84,650.07 = 38,679.66/x
  3. Step 3: Cross multiply
    61,300.53x = 84,650.07 × 38,679.66
  4. Step 4: Simplify right side
    61,300.53x = 3,274,235,733.18
  5. Step 5: Solve for x
    x = 3,274,235,733.18/61,300.53
  6. Step 6: Final answer
    x = 53,412.85

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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.