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Finding the Fourth Proportional to 74,704.40, 112,056.60 and 30,332.60

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Solution

The fourth proportional to 74,704.40, 112,056.60 and 30,332.60 is: 45,498.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,704.40 : 112,056.60 = 30,332.60 : x
  2. Step 2: Convert to fraction form
    74,704.40/112,056.60 = 30,332.60/x
  3. Step 3: Cross multiply
    74,704.40x = 112,056.60 × 30,332.60
  4. Step 4: Simplify right side
    74,704.40x = 3,398,968,025.16
  5. Step 5: Solve for x
    x = 3,398,968,025.16/74,704.40
  6. Step 6: Final answer
    x = 45,498.90

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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.