Home / 85,726.38-128,553.42-32,409.36

Finding the Fourth Proportional to 85,726.38, 128,553.42 and 32,409.36

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Solution

The fourth proportional to 85,726.38, 128,553.42 and 32,409.36 is: 48,600.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,726.38 : 128,553.42 = 32,409.36 : x
  2. Step 2: Convert to fraction form
    85,726.38/128,553.42 = 32,409.36/x
  3. Step 3: Cross multiply
    85,726.38x = 128,553.42 × 32,409.36
  4. Step 4: Simplify right side
    85,726.38x = 4,166,334,068.01
  5. Step 5: Solve for x
    x = 4,166,334,068.01/85,726.38
  6. Step 6: Final answer
    x = 48,600.37

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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.