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Finding the Fourth Proportional to 60,360, 83,296.80 and 39,139.43

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Solution

The fourth proportional to 60,360, 83,296.80 and 39,139.43 is: 54,012.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,360 : 83,296.80 = 39,139.43 : x
  2. Step 2: Convert to fraction form
    60,360/83,296.80 = 39,139.43/x
  3. Step 3: Cross multiply
    60,360x = 83,296.80 × 39,139.43
  4. Step 4: Simplify right side
    60,360x = 3,260,188,856.34
  5. Step 5: Solve for x
    x = 3,260,188,856.34/60,360
  6. Step 6: Final answer
    x = 54,012.41

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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.