Home / 89,758.50-123,865.08-49,472.40

Finding the Fourth Proportional to 89,758.50, 123,865.08 and 49,472.40

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Solution

The fourth proportional to 89,758.50, 123,865.08 and 49,472.40 is: 68,271.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,758.50 : 123,865.08 = 49,472.40 : x
  2. Step 2: Convert to fraction form
    89,758.50/123,865.08 = 49,472.40/x
  3. Step 3: Cross multiply
    89,758.50x = 123,865.08 × 49,472.40
  4. Step 4: Simplify right side
    89,758.50x = 6,127,902,783.79
  5. Step 5: Solve for x
    x = 6,127,902,783.79/89,758.50
  6. Step 6: Final answer
    x = 68,271.00

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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.