Home / 51,128.12-70,551.78-29,903.24

Finding the Fourth Proportional to 51,128.12, 70,551.78 and 29,903.24

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Solution

The fourth proportional to 51,128.12, 70,551.78 and 29,903.24 is: 41,263.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,128.12 : 70,551.78 = 29,903.24 : x
  2. Step 2: Convert to fraction form
    51,128.12/70,551.78 = 29,903.24/x
  3. Step 3: Cross multiply
    51,128.12x = 70,551.78 × 29,903.24
  4. Step 4: Simplify right side
    51,128.12x = 2,109,726,809.77
  5. Step 5: Solve for x
    x = 2,109,726,809.77/51,128.12
  6. Step 6: Final answer
    x = 41,263.53

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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.