Home / 77,575.12-116,360.36-21,418.66

Finding the Fourth Proportional to 77,575.12, 116,360.36 and 21,418.66

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Solution

The fourth proportional to 77,575.12, 116,360.36 and 21,418.66 is: 32,127.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,575.12 : 116,360.36 = 21,418.66 : x
  2. Step 2: Convert to fraction form
    77,575.12/116,360.36 = 21,418.66/x
  3. Step 3: Cross multiply
    77,575.12x = 116,360.36 × 21,418.66
  4. Step 4: Simplify right side
    77,575.12x = 2,492,282,299.42
  5. Step 5: Solve for x
    x = 2,492,282,299.42/77,575.12
  6. Step 6: Final answer
    x = 32,127.34

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1.5x scale

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.