Home / 84,254.40-126,327.60-39,823.20

Finding the Fourth Proportional to 84,254.40, 126,327.60 and 39,823.20

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Solution

The fourth proportional to 84,254.40, 126,327.60 and 39,823.20 is: 59,709.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,254.40 : 126,327.60 = 39,823.20 : x
  2. Step 2: Convert to fraction form
    84,254.40/126,327.60 = 39,823.20/x
  3. Step 3: Cross multiply
    84,254.40x = 126,327.60 × 39,823.20
  4. Step 4: Simplify right side
    84,254.40x = 5,030,769,280.32
  5. Step 5: Solve for x
    x = 5,030,769,280.32/84,254.40
  6. Step 6: Final answer
    x = 59,709.28

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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.