Home / 85,726.81-128,596.39-29,566.13

Finding the Fourth Proportional to 85,726.81, 128,596.39 and 29,566.13

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Solution

The fourth proportional to 85,726.81, 128,596.39 and 29,566.13 is: 44,351.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,726.81 : 128,596.39 = 29,566.13 : x
  2. Step 2: Convert to fraction form
    85,726.81/128,596.39 = 29,566.13/x
  3. Step 3: Cross multiply
    85,726.81x = 128,596.39 × 29,566.13
  4. Step 4: Simplify right side
    85,726.81x = 3,802,096,867.37
  5. Step 5: Solve for x
    x = 3,802,096,867.37/85,726.81
  6. Step 6: Final answer
    x = 44,351.32

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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.