Home / 91,239.59-136,872.41-28,064.98

Finding the Fourth Proportional to 91,239.59, 136,872.41 and 28,064.98

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Solution

The fourth proportional to 91,239.59, 136,872.41 and 28,064.98 is: 42,101.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,239.59 : 136,872.41 = 28,064.98 : x
  2. Step 2: Convert to fraction form
    91,239.59/136,872.41 = 28,064.98/x
  3. Step 3: Cross multiply
    91,239.59x = 136,872.41 × 28,064.98
  4. Step 4: Simplify right side
    91,239.59x = 3,841,321,558.90
  5. Step 5: Solve for x
    x = 3,841,321,558.90/91,239.59
  6. Step 6: Final answer
    x = 42,101.48

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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.