Home / 64,000.35-96,021.59-30,280.86

Finding the Fourth Proportional to 64,000.35, 96,021.59 and 30,280.86

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Solution

The fourth proportional to 64,000.35, 96,021.59 and 30,280.86 is: 45,431.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,000.35 : 96,021.59 = 30,280.86 : x
  2. Step 2: Convert to fraction form
    64,000.35/96,021.59 = 30,280.86/x
  3. Step 3: Cross multiply
    64,000.35x = 96,021.59 × 30,280.86
  4. Step 4: Simplify right side
    64,000.35x = 2,907,616,172.36
  5. Step 5: Solve for x
    x = 2,907,616,172.36/64,000.35
  6. Step 6: Final answer
    x = 45,431.25

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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.