Home / 53,430.66-80,119.26-17,879.76

Finding the Fourth Proportional to 53,430.66, 80,119.26 and 17,879.76

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Solution

The fourth proportional to 53,430.66, 80,119.26 and 17,879.76 is: 26,810.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,430.66 : 80,119.26 = 17,879.76 : x
  2. Step 2: Convert to fraction form
    53,430.66/80,119.26 = 17,879.76/x
  3. Step 3: Cross multiply
    53,430.66x = 80,119.26 × 17,879.76
  4. Step 4: Simplify right side
    53,430.66x = 1,432,513,140.18
  5. Step 5: Solve for x
    x = 1,432,513,140.18/53,430.66
  6. Step 6: Final answer
    x = 26,810.70

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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.