Home / 94,727.20-142,090.80-39,431.20

Finding the Fourth Proportional to 94,727.20, 142,090.80 and 39,431.20

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Solution

The fourth proportional to 94,727.20, 142,090.80 and 39,431.20 is: 59,146.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,727.20 : 142,090.80 = 39,431.20 : x
  2. Step 2: Convert to fraction form
    94,727.20/142,090.80 = 39,431.20/x
  3. Step 3: Cross multiply
    94,727.20x = 142,090.80 × 39,431.20
  4. Step 4: Simplify right side
    94,727.20x = 5,602,810,752.96
  5. Step 5: Solve for x
    x = 5,602,810,752.96/94,727.20
  6. Step 6: Final answer
    x = 59,146.80

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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.