Home / 60,979.20-91,475.52-19,416.64

Finding the Fourth Proportional to 60,979.20, 91,475.52 and 19,416.64

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Solution

The fourth proportional to 60,979.20, 91,475.52 and 19,416.64 is: 29,127.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,979.20 : 91,475.52 = 19,416.64 : x
  2. Step 2: Convert to fraction form
    60,979.20/91,475.52 = 19,416.64/x
  3. Step 3: Cross multiply
    60,979.20x = 91,475.52 × 19,416.64
  4. Step 4: Simplify right side
    60,979.20x = 1,776,147,240.65
  5. Step 5: Solve for x
    x = 1,776,147,240.65/60,979.20
  6. Step 6: Final answer
    x = 29,127.10

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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.