Home / 76,971.08-115,463.42-21,567.24

Finding the Fourth Proportional to 76,971.08, 115,463.42 and 21,567.24

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Solution

The fourth proportional to 76,971.08, 115,463.42 and 21,567.24 is: 32,352.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,971.08 : 115,463.42 = 21,567.24 : x
  2. Step 2: Convert to fraction form
    76,971.08/115,463.42 = 21,567.24/x
  3. Step 3: Cross multiply
    76,971.08x = 115,463.42 × 21,567.24
  4. Step 4: Simplify right side
    76,971.08x = 2,490,227,290.36
  5. Step 5: Solve for x
    x = 2,490,227,290.36/76,971.08
  6. Step 6: Final answer
    x = 32,352.77

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1.5x scale

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.