Home / 81,136.03-121,715.55-24,980.82

Finding the Fourth Proportional to 81,136.03, 121,715.55 and 24,980.82

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Solution

The fourth proportional to 81,136.03, 121,715.55 and 24,980.82 is: 37,474.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,136.03 : 121,715.55 = 24,980.82 : x
  2. Step 2: Convert to fraction form
    81,136.03/121,715.55 = 24,980.82/x
  3. Step 3: Cross multiply
    81,136.03x = 121,715.55 × 24,980.82
  4. Step 4: Simplify right side
    81,136.03x = 3,040,553,925.35
  5. Step 5: Solve for x
    x = 3,040,553,925.35/81,136.03
  6. Step 6: Final answer
    x = 37,474.77

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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.