Home / 77,548.12-116,322.78-42,468.64

Finding the Fourth Proportional to 77,548.12, 116,322.78 and 42,468.64

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Solution

The fourth proportional to 77,548.12, 116,322.78 and 42,468.64 is: 63,703.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,548.12 : 116,322.78 = 42,468.64 : x
  2. Step 2: Convert to fraction form
    77,548.12/116,322.78 = 42,468.64/x
  3. Step 3: Cross multiply
    77,548.12x = 116,322.78 × 42,468.64
  4. Step 4: Simplify right side
    77,548.12x = 4,940,070,267.62
  5. Step 5: Solve for x
    x = 4,940,070,267.62/77,548.12
  6. Step 6: Final answer
    x = 63,703.29

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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.