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Finding the Fourth Proportional to 85,598.51, 128,425.14 and 35,683.88

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Solution

The fourth proportional to 85,598.51, 128,425.14 and 35,683.88 is: 53,537.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,598.51 : 128,425.14 = 35,683.88 : x
  2. Step 2: Convert to fraction form
    85,598.51/128,425.14 = 35,683.88/x
  3. Step 3: Cross multiply
    85,598.51x = 128,425.14 × 35,683.88
  4. Step 4: Simplify right side
    85,598.51x = 4,582,706,642.62
  5. Step 5: Solve for x
    x = 4,582,706,642.62/85,598.51
  6. Step 6: Final answer
    x = 53,537.23

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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.