Home / 83,420.27-125,077.37-70,774.40

Finding the Fourth Proportional to 83,420.27, 125,077.37 and 70,774.40

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Solution

The fourth proportional to 83,420.27, 125,077.37 and 70,774.40 is: 106,116.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,420.27 : 125,077.37 = 70,774.40 : x
  2. Step 2: Convert to fraction form
    83,420.27/125,077.37 = 70,774.40/x
  3. Step 3: Cross multiply
    83,420.27x = 125,077.37 × 70,774.40
  4. Step 4: Simplify right side
    83,420.27x = 8,852,276,304.96
  5. Step 5: Solve for x
    x = 8,852,276,304.96/83,420.27
  6. Step 6: Final answer
    x = 106,116.61

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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.