Home / 51,035.65-70,431.00-28,381.07

Finding the Fourth Proportional to 51,035.65, 70,431.00 and 28,381.07

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Solution

The fourth proportional to 51,035.65, 70,431.00 and 28,381.07 is: 39,166.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,035.65 : 70,431.00 = 28,381.07 : x
  2. Step 2: Convert to fraction form
    51,035.65/70,431.00 = 28,381.07/x
  3. Step 3: Cross multiply
    51,035.65x = 70,431.00 × 28,381.07
  4. Step 4: Simplify right side
    51,035.65x = 1,998,906,647.11
  5. Step 5: Solve for x
    x = 1,998,906,647.11/51,035.65
  6. Step 6: Final answer
    x = 39,166.87

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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.