Home / 83,510.90-115,245.42-45,271.10

Finding the Fourth Proportional to 83,510.90, 115,245.42 and 45,271.10

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Solution

The fourth proportional to 83,510.90, 115,245.42 and 45,271.10 is: 62,474.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,510.90 : 115,245.42 = 45,271.10 : x
  2. Step 2: Convert to fraction form
    83,510.90/115,245.42 = 45,271.10/x
  3. Step 3: Cross multiply
    83,510.90x = 115,245.42 × 45,271.10
  4. Step 4: Simplify right side
    83,510.90x = 5,217,286,933.36
  5. Step 5: Solve for x
    x = 5,217,286,933.36/83,510.90
  6. Step 6: Final answer
    x = 62,474.32

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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.