Home / 78,271.42-117,356.08-51,536.52

Finding the Fourth Proportional to 78,271.42, 117,356.08 and 51,536.52

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Solution

The fourth proportional to 78,271.42, 117,356.08 and 51,536.52 is: 77,271.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,271.42 : 117,356.08 = 51,536.52 : x
  2. Step 2: Convert to fraction form
    78,271.42/117,356.08 = 51,536.52/x
  3. Step 3: Cross multiply
    78,271.42x = 117,356.08 × 51,536.52
  4. Step 4: Simplify right side
    78,271.42x = 6,048,123,964.04
  5. Step 5: Solve for x
    x = 6,048,123,964.04/78,271.42
  6. Step 6: Final answer
    x = 77,271.17

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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.