Home / 71,869.36-98,461.38-69,175.81

Finding the Fourth Proportional to 71,869.36, 98,461.38 and 69,175.81

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Solution

The fourth proportional to 71,869.36, 98,461.38 and 69,175.81 is: 94,771.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,869.36 : 98,461.38 = 69,175.81 : x
  2. Step 2: Convert to fraction form
    71,869.36/98,461.38 = 69,175.81/x
  3. Step 3: Cross multiply
    71,869.36x = 98,461.38 × 69,175.81
  4. Step 4: Simplify right side
    71,869.36x = 6,811,145,715.22
  5. Step 5: Solve for x
    x = 6,811,145,715.22/71,869.36
  6. Step 6: Final answer
    x = 94,771.20

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.