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Finding the Fourth Proportional to 53,377.95, 79,978.97 and 18,298.35

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Solution

The fourth proportional to 53,377.95, 79,978.97 and 18,298.35 is: 27,417.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,377.95 : 79,978.97 = 18,298.35 : x
  2. Step 2: Convert to fraction form
    53,377.95/79,978.97 = 18,298.35/x
  3. Step 3: Cross multiply
    53,377.95x = 79,978.97 × 18,298.35
  4. Step 4: Simplify right side
    53,377.95x = 1,463,483,094.21
  5. Step 5: Solve for x
    x = 1,463,483,094.21/53,377.95
  6. Step 6: Final answer
    x = 27,417.37

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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.