Home / 53,688.74-80,533-13,707.70

Finding the Fourth Proportional to 53,688.74, 80,533 and 13,707.70

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Solution

The fourth proportional to 53,688.74, 80,533 and 13,707.70 is: 20,561.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,688.74 : 80,533 = 13,707.70 : x
  2. Step 2: Convert to fraction form
    53,688.74/80,533 = 13,707.70/x
  3. Step 3: Cross multiply
    53,688.74x = 80,533 × 13,707.70
  4. Step 4: Simplify right side
    53,688.74x = 1,103,922,204.10
  5. Step 5: Solve for x
    x = 1,103,922,204.10/53,688.74
  6. Step 6: Final answer
    x = 20,561.52

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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.