Home / 89,153.72-133,849.36-51,740.65

Finding the Fourth Proportional to 89,153.72, 133,849.36 and 51,740.65

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Solution

The fourth proportional to 89,153.72, 133,849.36 and 51,740.65 is: 77,679.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,153.72 : 133,849.36 = 51,740.65 : x
  2. Step 2: Convert to fraction form
    89,153.72/133,849.36 = 51,740.65/x
  3. Step 3: Cross multiply
    89,153.72x = 133,849.36 × 51,740.65
  4. Step 4: Simplify right side
    89,153.72x = 6,925,452,888.48
  5. Step 5: Solve for x
    x = 6,925,452,888.48/89,153.72
  6. Step 6: Final answer
    x = 77,679.91

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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.