Home / 89,384.45-123,316.16-51,136.25

Finding the Fourth Proportional to 89,384.45, 123,316.16 and 51,136.25

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Solution

The fourth proportional to 89,384.45, 123,316.16 and 51,136.25 is: 70,548.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,384.45 : 123,316.16 = 51,136.25 : x
  2. Step 2: Convert to fraction form
    89,384.45/123,316.16 = 51,136.25/x
  3. Step 3: Cross multiply
    89,384.45x = 123,316.16 × 51,136.25
  4. Step 4: Simplify right side
    89,384.45x = 6,305,925,114.54
  5. Step 5: Solve for x
    x = 6,305,925,114.54/89,384.45
  6. Step 6: Final answer
    x = 70,548.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.