Home / 55,429.10-83,143.65-51,152.30

Finding the Fourth Proportional to 55,429.10, 83,143.65 and 51,152.30

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Solution

The fourth proportional to 55,429.10, 83,143.65 and 51,152.30 is: 76,728.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,429.10 : 83,143.65 = 51,152.30 : x
  2. Step 2: Convert to fraction form
    55,429.10/83,143.65 = 51,152.30/x
  3. Step 3: Cross multiply
    55,429.10x = 83,143.65 × 51,152.30
  4. Step 4: Simplify right side
    55,429.10x = 4,252,988,927.90
  5. Step 5: Solve for x
    x = 4,252,988,927.90/55,429.10
  6. Step 6: Final answer
    x = 76,728.45

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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.