Home / 96,915.12-145,372.68-30,355.80

Finding the Fourth Proportional to 96,915.12, 145,372.68 and 30,355.80

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Solution

The fourth proportional to 96,915.12, 145,372.68 and 30,355.80 is: 45,533.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,915.12 : 145,372.68 = 30,355.80 : x
  2. Step 2: Convert to fraction form
    96,915.12/145,372.68 = 30,355.80/x
  3. Step 3: Cross multiply
    96,915.12x = 145,372.68 × 30,355.80
  4. Step 4: Simplify right side
    96,915.12x = 4,412,903,999.54
  5. Step 5: Solve for x
    x = 4,412,903,999.54/96,915.12
  6. Step 6: Final answer
    x = 45,533.70

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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.