Home / 85,816.15-128,624.54-32,474.20

Finding the Fourth Proportional to 85,816.15, 128,624.54 and 32,474.20

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Solution

The fourth proportional to 85,816.15, 128,624.54 and 32,474.20 is: 48,673.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,816.15 : 128,624.54 = 32,474.20 : x
  2. Step 2: Convert to fraction form
    85,816.15/128,624.54 = 32,474.20/x
  3. Step 3: Cross multiply
    85,816.15x = 128,624.54 × 32,474.20
  4. Step 4: Simplify right side
    85,816.15x = 4,176,979,036.87
  5. Step 5: Solve for x
    x = 4,176,979,036.87/85,816.15
  6. Step 6: Final answer
    x = 48,673.58

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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.