Home / 53,455.48-80,159.52-28,490.87

Finding the Fourth Proportional to 53,455.48, 80,159.52 and 28,490.87

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Solution

The fourth proportional to 53,455.48, 80,159.52 and 28,490.87 is: 42,723.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,455.48 : 80,159.52 = 28,490.87 : x
  2. Step 2: Convert to fraction form
    53,455.48/80,159.52 = 28,490.87/x
  3. Step 3: Cross multiply
    53,455.48x = 80,159.52 × 28,490.87
  4. Step 4: Simplify right side
    53,455.48x = 2,283,814,770.82
  5. Step 5: Solve for x
    x = 2,283,814,770.82/53,455.48
  6. Step 6: Final answer
    x = 42,723.68

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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.