Home / 70,621.50-97,457.76-38,791.02

Finding the Fourth Proportional to 70,621.50, 97,457.76 and 38,791.02

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Solution

The fourth proportional to 70,621.50, 97,457.76 and 38,791.02 is: 53,531.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,621.50 : 97,457.76 = 38,791.02 : x
  2. Step 2: Convert to fraction form
    70,621.50/97,457.76 = 38,791.02/x
  3. Step 3: Cross multiply
    70,621.50x = 97,457.76 × 38,791.02
  4. Step 4: Simplify right side
    70,621.50x = 3,780,485,917.32
  5. Step 5: Solve for x
    x = 3,780,485,917.32/70,621.50
  6. Step 6: Final answer
    x = 53,531.66

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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.