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Finding the Fourth Proportional to 60,770.28, 91,125.40 and 18,640.28

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Solution

The fourth proportional to 60,770.28, 91,125.40 and 18,640.28 is: 27,951.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,770.28 : 91,125.40 = 18,640.28 : x
  2. Step 2: Convert to fraction form
    60,770.28/91,125.40 = 18,640.28/x
  3. Step 3: Cross multiply
    60,770.28x = 91,125.40 × 18,640.28
  4. Step 4: Simplify right side
    60,770.28x = 1,698,602,971.11
  5. Step 5: Solve for x
    x = 1,698,602,971.11/60,770.28
  6. Step 6: Final answer
    x = 27,951.21

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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.