Home / 64,424.20-96,636.30-38,115.40

Finding the Fourth Proportional to 64,424.20, 96,636.30 and 38,115.40

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Solution

The fourth proportional to 64,424.20, 96,636.30 and 38,115.40 is: 57,173.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,424.20 : 96,636.30 = 38,115.40 : x
  2. Step 2: Convert to fraction form
    64,424.20/96,636.30 = 38,115.40/x
  3. Step 3: Cross multiply
    64,424.20x = 96,636.30 × 38,115.40
  4. Step 4: Simplify right side
    64,424.20x = 3,683,331,229.02
  5. Step 5: Solve for x
    x = 3,683,331,229.02/64,424.20
  6. Step 6: Final answer
    x = 57,173.10

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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.