Home / 53,445.16-80,138.10-21,877.36

Finding the Fourth Proportional to 53,445.16, 80,138.10 and 21,877.36

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Solution

The fourth proportional to 53,445.16, 80,138.10 and 21,877.36 is: 32,803.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,445.16 : 80,138.10 = 21,877.36 : x
  2. Step 2: Convert to fraction form
    53,445.16/80,138.10 = 21,877.36/x
  3. Step 3: Cross multiply
    53,445.16x = 80,138.10 × 21,877.36
  4. Step 4: Simplify right side
    53,445.16x = 1,753,210,063.42
  5. Step 5: Solve for x
    x = 1,753,210,063.42/53,445.16
  6. Step 6: Final answer
    x = 32,803.91

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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.