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Finding the Fourth Proportional to 88,370.88, 122,058 and 64,459.68

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Solution

The fourth proportional to 88,370.88, 122,058 and 64,459.68 is: 89,031.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,370.88 : 122,058 = 64,459.68 : x
  2. Step 2: Convert to fraction form
    88,370.88/122,058 = 64,459.68/x
  3. Step 3: Cross multiply
    88,370.88x = 122,058 × 64,459.68
  4. Step 4: Simplify right side
    88,370.88x = 7,867,819,621.44
  5. Step 5: Solve for x
    x = 7,867,819,621.44/88,370.88
  6. Step 6: Final answer
    x = 89,031.81

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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.