Home / 71,957.12-99,422.70-51,774.08

Finding the Fourth Proportional to 71,957.12, 99,422.70 and 51,774.08

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Solution

The fourth proportional to 71,957.12, 99,422.70 and 51,774.08 is: 71,535.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,957.12 : 99,422.70 = 51,774.08 : x
  2. Step 2: Convert to fraction form
    71,957.12/99,422.70 = 51,774.08/x
  3. Step 3: Cross multiply
    71,957.12x = 99,422.70 × 51,774.08
  4. Step 4: Simplify right side
    71,957.12x = 5,147,518,823.62
  5. Step 5: Solve for x
    x = 5,147,518,823.62/71,957.12
  6. Step 6: Final answer
    x = 71,535.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.