Home / 85,457.62-128,232.33-35,572.15

Finding the Fourth Proportional to 85,457.62, 128,232.33 and 35,572.15

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Solution

The fourth proportional to 85,457.62, 128,232.33 and 35,572.15 is: 53,377.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,457.62 : 128,232.33 = 35,572.15 : x
  2. Step 2: Convert to fraction form
    85,457.62/128,232.33 = 35,572.15/x
  3. Step 3: Cross multiply
    85,457.62x = 128,232.33 × 35,572.15
  4. Step 4: Simplify right side
    85,457.62x = 4,561,499,677.61
  5. Step 5: Solve for x
    x = 4,561,499,677.61/85,457.62
  6. Step 6: Final answer
    x = 53,377.33

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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.