Home / 71,365.32-98,428.70-48,722.56

Finding the Fourth Proportional to 71,365.32, 98,428.70 and 48,722.56

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Solution

The fourth proportional to 71,365.32, 98,428.70 and 48,722.56 is: 67,199.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,365.32 : 98,428.70 = 48,722.56 : x
  2. Step 2: Convert to fraction form
    71,365.32/98,428.70 = 48,722.56/x
  3. Step 3: Cross multiply
    71,365.32x = 98,428.70 × 48,722.56
  4. Step 4: Simplify right side
    71,365.32x = 4,795,698,241.47
  5. Step 5: Solve for x
    x = 4,795,698,241.47/71,365.32
  6. Step 6: Final answer
    x = 67,199.28

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1.5x scale

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.