Home / 77,572.20-116,364.97-21,412.32

Finding the Fourth Proportional to 77,572.20, 116,364.97 and 21,412.32

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Solution

The fourth proportional to 77,572.20, 116,364.97 and 21,412.32 is: 32,120.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,572.20 : 116,364.97 = 21,412.32 : x
  2. Step 2: Convert to fraction form
    77,572.20/116,364.97 = 21,412.32/x
  3. Step 3: Cross multiply
    77,572.20x = 116,364.97 × 21,412.32
  4. Step 4: Simplify right side
    77,572.20x = 2,491,643,392.61
  5. Step 5: Solve for x
    x = 2,491,643,392.61/77,572.20
  6. Step 6: Final answer
    x = 32,120.32

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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.