Home / 89,261.88-123,182.70-51,029.40

Finding the Fourth Proportional to 89,261.88, 123,182.70 and 51,029.40

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Solution

The fourth proportional to 89,261.88, 123,182.70 and 51,029.40 is: 70,421.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,261.88 : 123,182.70 = 51,029.40 : x
  2. Step 2: Convert to fraction form
    89,261.88/123,182.70 = 51,029.40/x
  3. Step 3: Cross multiply
    89,261.88x = 123,182.70 × 51,029.40
  4. Step 4: Simplify right side
    89,261.88x = 6,285,939,271.38
  5. Step 5: Solve for x
    x = 6,285,939,271.38/89,261.88
  6. Step 6: Final answer
    x = 70,421.32

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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.