Home / 96,775.68-145,139.16-34,431.60

Finding the Fourth Proportional to 96,775.68, 145,139.16 and 34,431.60

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Solution

The fourth proportional to 96,775.68, 145,139.16 and 34,431.60 is: 51,638.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,775.68 : 145,139.16 = 34,431.60 : x
  2. Step 2: Convert to fraction form
    96,775.68/145,139.16 = 34,431.60/x
  3. Step 3: Cross multiply
    96,775.68x = 145,139.16 × 34,431.60
  4. Step 4: Simplify right side
    96,775.68x = 4,997,373,501.46
  5. Step 5: Solve for x
    x = 4,997,373,501.46/96,775.68
  6. Step 6: Final answer
    x = 51,638.73

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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.