Home / 64,318.40-96,445.20-38,031.20

Finding the Fourth Proportional to 64,318.40, 96,445.20 and 38,031.20

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Solution

The fourth proportional to 64,318.40, 96,445.20 and 38,031.20 is: 57,027.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,318.40 : 96,445.20 = 38,031.20 : x
  2. Step 2: Convert to fraction form
    64,318.40/96,445.20 = 38,031.20/x
  3. Step 3: Cross multiply
    64,318.40x = 96,445.20 × 38,031.20
  4. Step 4: Simplify right side
    64,318.40x = 3,667,926,690.24
  5. Step 5: Solve for x
    x = 3,667,926,690.24/64,318.40
  6. Step 6: Final answer
    x = 57,027.64

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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.