Home / 88,135.56-121,534.09-62,615.30

Finding the Fourth Proportional to 88,135.56, 121,534.09 and 62,615.30

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Solution

The fourth proportional to 88,135.56, 121,534.09 and 62,615.30 is: 86,343.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,135.56 : 121,534.09 = 62,615.30 : x
  2. Step 2: Convert to fraction form
    88,135.56/121,534.09 = 62,615.30/x
  3. Step 3: Cross multiply
    88,135.56x = 121,534.09 × 62,615.30
  4. Step 4: Simplify right side
    88,135.56x = 7,609,892,741.37
  5. Step 5: Solve for x
    x = 7,609,892,741.37/88,135.56
  6. Step 6: Final answer
    x = 86,343.05

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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.