Home / 40,727.36-61,087.80-12,646.28

Finding the Fourth Proportional to 40,727.36, 61,087.80 and 12,646.28

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Solution

The fourth proportional to 40,727.36, 61,087.80 and 12,646.28 is: 18,968.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,727.36 : 61,087.80 = 12,646.28 : x
  2. Step 2: Convert to fraction form
    40,727.36/61,087.80 = 12,646.28/x
  3. Step 3: Cross multiply
    40,727.36x = 61,087.80 × 12,646.28
  4. Step 4: Simplify right side
    40,727.36x = 772,533,423.38
  5. Step 5: Solve for x
    x = 772,533,423.38/40,727.36
  6. Step 6: Final answer
    x = 18,968.41

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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.