Home / 64,742.40-96,919.20-38,433.60

Finding the Fourth Proportional to 64,742.40, 96,919.20 and 38,433.60

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Solution

The fourth proportional to 64,742.40, 96,919.20 and 38,433.60 is: 57,535.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,742.40 : 96,919.20 = 38,433.60 : x
  2. Step 2: Convert to fraction form
    64,742.40/96,919.20 = 38,433.60/x
  3. Step 3: Cross multiply
    64,742.40x = 96,919.20 × 38,433.60
  4. Step 4: Simplify right side
    64,742.40x = 3,724,953,765.12
  5. Step 5: Solve for x
    x = 3,724,953,765.12/64,742.40
  6. Step 6: Final answer
    x = 57,535.00

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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.