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Finding the Fourth Proportional to 74,150.40, 111,225.60 and 43,065.60

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Solution

The fourth proportional to 74,150.40, 111,225.60 and 43,065.60 is: 64,598.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,150.40 : 111,225.60 = 43,065.60 : x
  2. Step 2: Convert to fraction form
    74,150.40/111,225.60 = 43,065.60/x
  3. Step 3: Cross multiply
    74,150.40x = 111,225.60 × 43,065.60
  4. Step 4: Simplify right side
    74,150.40x = 4,789,997,199.36
  5. Step 5: Solve for x
    x = 4,789,997,199.36/74,150.40
  6. Step 6: Final answer
    x = 64,598.40

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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.