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Finding the Fourth Proportional to 89,970.53, 135,002.51 and 36,701.60

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Solution

The fourth proportional to 89,970.53, 135,002.51 and 36,701.60 is: 55,071.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,970.53 : 135,002.51 = 36,701.60 : x
  2. Step 2: Convert to fraction form
    89,970.53/135,002.51 = 36,701.60/x
  3. Step 3: Cross multiply
    89,970.53x = 135,002.51 × 36,701.60
  4. Step 4: Simplify right side
    89,970.53x = 4,954,808,121.02
  5. Step 5: Solve for x
    x = 4,954,808,121.02/89,970.53
  6. Step 6: Final answer
    x = 55,071.46

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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.