Home / 53,663.16-80,509.32-38,179.20

Finding the Fourth Proportional to 53,663.16, 80,509.32 and 38,179.20

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Solution

The fourth proportional to 53,663.16, 80,509.32 and 38,179.20 is: 57,279.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,663.16 : 80,509.32 = 38,179.20 : x
  2. Step 2: Convert to fraction form
    53,663.16/80,509.32 = 38,179.20/x
  3. Step 3: Cross multiply
    53,663.16x = 80,509.32 × 38,179.20
  4. Step 4: Simplify right side
    53,663.16x = 3,073,781,430.14
  5. Step 5: Solve for x
    x = 3,073,781,430.14/53,663.16
  6. Step 6: Final answer
    x = 57,279.17

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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.