Home / 71,072.13-97,989.15-50,331

Finding the Fourth Proportional to 71,072.13, 97,989.15 and 50,331

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Solution

The fourth proportional to 71,072.13, 97,989.15 and 50,331 is: 69,392.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,072.13 : 97,989.15 = 50,331 : x
  2. Step 2: Convert to fraction form
    71,072.13/97,989.15 = 50,331/x
  3. Step 3: Cross multiply
    71,072.13x = 97,989.15 × 50,331
  4. Step 4: Simplify right side
    71,072.13x = 4,931,891,908.65
  5. Step 5: Solve for x
    x = 4,931,891,908.65/71,072.13
  6. Step 6: Final answer
    x = 69,392.77

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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.