Home / 70,810.18-106,190.52-20,877.02

Finding the Fourth Proportional to 70,810.18, 106,190.52 and 20,877.02

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Solution

The fourth proportional to 70,810.18, 106,190.52 and 20,877.02 is: 31,308.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,810.18 : 106,190.52 = 20,877.02 : x
  2. Step 2: Convert to fraction form
    70,810.18/106,190.52 = 20,877.02/x
  3. Step 3: Cross multiply
    70,810.18x = 106,190.52 × 20,877.02
  4. Step 4: Simplify right side
    70,810.18x = 2,216,941,609.85
  5. Step 5: Solve for x
    x = 2,216,941,609.85/70,810.18
  6. Step 6: Final answer
    x = 31,308.23

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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.