Home / 72,209.28-108,279.73-42,232.19

Finding the Fourth Proportional to 72,209.28, 108,279.73 and 42,232.19

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Solution

The fourth proportional to 72,209.28, 108,279.73 and 42,232.19 is: 63,328.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,209.28 : 108,279.73 = 42,232.19 : x
  2. Step 2: Convert to fraction form
    72,209.28/108,279.73 = 42,232.19/x
  3. Step 3: Cross multiply
    72,209.28x = 108,279.73 × 42,232.19
  4. Step 4: Simplify right side
    72,209.28x = 4,572,890,130.51
  5. Step 5: Solve for x
    x = 4,572,890,130.51/72,209.28
  6. Step 6: Final answer
    x = 63,328.29

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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.