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Finding the Fourth Proportional to 60,415.71, 90,636.17 and 30,446.79

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Solution

The fourth proportional to 60,415.71, 90,636.17 and 30,446.79 is: 45,676.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,415.71 : 90,636.17 = 30,446.79 : x
  2. Step 2: Convert to fraction form
    60,415.71/90,636.17 = 30,446.79/x
  3. Step 3: Cross multiply
    60,415.71x = 90,636.17 × 30,446.79
  4. Step 4: Simplify right side
    60,415.71x = 2,759,580,282.16
  5. Step 5: Solve for x
    x = 2,759,580,282.16/60,415.71
  6. Step 6: Final answer
    x = 45,676.53

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1.5x scale

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.