Home / 52,136.88-78,204.16-12,694.24

Finding the Fourth Proportional to 52,136.88, 78,204.16 and 12,694.24

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Solution

The fourth proportional to 52,136.88, 78,204.16 and 12,694.24 is: 19,041.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,136.88 : 78,204.16 = 12,694.24 : x
  2. Step 2: Convert to fraction form
    52,136.88/78,204.16 = 12,694.24/x
  3. Step 3: Cross multiply
    52,136.88x = 78,204.16 × 12,694.24
  4. Step 4: Simplify right side
    52,136.88x = 992,742,376.04
  5. Step 5: Solve for x
    x = 992,742,376.04/52,136.88
  6. Step 6: Final answer
    x = 19,041.08

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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.