Home / 97,869.73-135,058.00-57,031.30

Finding the Fourth Proportional to 97,869.73, 135,058.00 and 57,031.30

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Solution

The fourth proportional to 97,869.73, 135,058.00 and 57,031.30 is: 78,701.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,869.73 : 135,058.00 = 57,031.30 : x
  2. Step 2: Convert to fraction form
    97,869.73/135,058.00 = 57,031.30/x
  3. Step 3: Cross multiply
    97,869.73x = 135,058.00 × 57,031.30
  4. Step 4: Simplify right side
    97,869.73x = 7,702,533,172.82
  5. Step 5: Solve for x
    x = 7,702,533,172.82/97,869.73
  6. Step 6: Final answer
    x = 78,701.90

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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.