Home / 81,601.24-122,303.44-42,136.84

Finding the Fourth Proportional to 81,601.24, 122,303.44 and 42,136.84

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Solution

The fourth proportional to 81,601.24, 122,303.44 and 42,136.84 is: 63,154.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,601.24 : 122,303.44 = 42,136.84 : x
  2. Step 2: Convert to fraction form
    81,601.24/122,303.44 = 42,136.84/x
  3. Step 3: Cross multiply
    81,601.24x = 122,303.44 × 42,136.84
  4. Step 4: Simplify right side
    81,601.24x = 5,153,480,482.73
  5. Step 5: Solve for x
    x = 5,153,480,482.73/81,601.24
  6. Step 6: Final answer
    x = 63,154.44

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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.