Home / 72,928.47-109,590.35-39,673.11

Finding the Fourth Proportional to 72,928.47, 109,590.35 and 39,673.11

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Solution

The fourth proportional to 72,928.47, 109,590.35 and 39,673.11 is: 59,617.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,928.47 : 109,590.35 = 39,673.11 : x
  2. Step 2: Convert to fraction form
    72,928.47/109,590.35 = 39,673.11/x
  3. Step 3: Cross multiply
    72,928.47x = 109,590.35 × 39,673.11
  4. Step 4: Simplify right side
    72,928.47x = 4,347,789,812.12
  5. Step 5: Solve for x
    x = 4,347,789,812.12/72,928.47
  6. Step 6: Final answer
    x = 59,617.18

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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.