Home / 72,167.04-99,584-40,331.52

Finding the Fourth Proportional to 72,167.04, 99,584 and 40,331.52

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Solution

The fourth proportional to 72,167.04, 99,584 and 40,331.52 is: 55,653.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,167.04 : 99,584 = 40,331.52 : x
  2. Step 2: Convert to fraction form
    72,167.04/99,584 = 40,331.52/x
  3. Step 3: Cross multiply
    72,167.04x = 99,584 × 40,331.52
  4. Step 4: Simplify right side
    72,167.04x = 4,016,374,087.68
  5. Step 5: Solve for x
    x = 4,016,374,087.68/72,167.04
  6. Step 6: Final answer
    x = 55,653.86

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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.