Home / 78,169.28-117,240.16-22,752.32

Finding the Fourth Proportional to 78,169.28, 117,240.16 and 22,752.32

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Solution

The fourth proportional to 78,169.28, 117,240.16 and 22,752.32 is: 34,124.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,169.28 : 117,240.16 = 22,752.32 : x
  2. Step 2: Convert to fraction form
    78,169.28/117,240.16 = 22,752.32/x
  3. Step 3: Cross multiply
    78,169.28x = 117,240.16 × 22,752.32
  4. Step 4: Simplify right side
    78,169.28x = 2,667,485,637.17
  5. Step 5: Solve for x
    x = 2,667,485,637.17/78,169.28
  6. Step 6: Final answer
    x = 34,124.47

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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.