Home / 84,730.16-127,072.96-40,268.45

Finding the Fourth Proportional to 84,730.16, 127,072.96 and 40,268.45

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Solution

The fourth proportional to 84,730.16, 127,072.96 and 40,268.45 is: 60,392.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,730.16 : 127,072.96 = 40,268.45 : x
  2. Step 2: Convert to fraction form
    84,730.16/127,072.96 = 40,268.45/x
  3. Step 3: Cross multiply
    84,730.16x = 127,072.96 × 40,268.45
  4. Step 4: Simplify right side
    84,730.16x = 5,117,031,136.11
  5. Step 5: Solve for x
    x = 5,117,031,136.11/84,730.16
  6. Step 6: Final answer
    x = 60,392.09

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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.