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Finding the Fourth Proportional to 65,865.04, 90,894.48 and 37,572.40

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Solution

The fourth proportional to 65,865.04, 90,894.48 and 37,572.40 is: 51,850.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,865.04 : 90,894.48 = 37,572.40 : x
  2. Step 2: Convert to fraction form
    65,865.04/90,894.48 = 37,572.40/x
  3. Step 3: Cross multiply
    65,865.04x = 90,894.48 × 37,572.40
  4. Step 4: Simplify right side
    65,865.04x = 3,415,123,760.35
  5. Step 5: Solve for x
    x = 3,415,123,760.35/65,865.04
  6. Step 6: Final answer
    x = 51,850.33

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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.