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Finding the Fourth Proportional to 65,301.57, 90,112.41 and 36,619.06

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Solution

The fourth proportional to 65,301.57, 90,112.41 and 36,619.06 is: 50,532.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,301.57 : 90,112.41 = 36,619.06 : x
  2. Step 2: Convert to fraction form
    65,301.57/90,112.41 = 36,619.06/x
  3. Step 3: Cross multiply
    65,301.57x = 90,112.41 × 36,619.06
  4. Step 4: Simplify right side
    65,301.57x = 3,299,831,748.53
  5. Step 5: Solve for x
    x = 3,299,831,748.53/65,301.57
  6. Step 6: Final answer
    x = 50,532.20

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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.