Home / 85,359.20-127,875.60-45,903.20

Finding the Fourth Proportional to 85,359.20, 127,875.60 and 45,903.20

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Solution

The fourth proportional to 85,359.20, 127,875.60 and 45,903.20 is: 68,767.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,359.20 : 127,875.60 = 45,903.20 : x
  2. Step 2: Convert to fraction form
    85,359.20/127,875.60 = 45,903.20/x
  3. Step 3: Cross multiply
    85,359.20x = 127,875.60 × 45,903.20
  4. Step 4: Simplify right side
    85,359.20x = 5,869,899,241.92
  5. Step 5: Solve for x
    x = 5,869,899,241.92/85,359.20
  6. Step 6: Final answer
    x = 68,767.04

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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.