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Finding the Fourth Proportional to 98,820.64, 136,372.51 and 53,498.62

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Solution

The fourth proportional to 98,820.64, 136,372.51 and 53,498.62 is: 73,828.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,820.64 : 136,372.51 = 53,498.62 : x
  2. Step 2: Convert to fraction form
    98,820.64/136,372.51 = 53,498.62/x
  3. Step 3: Cross multiply
    98,820.64x = 136,372.51 × 53,498.62
  4. Step 4: Simplify right side
    98,820.64x = 7,295,741,090.94
  5. Step 5: Solve for x
    x = 7,295,741,090.94/98,820.64
  6. Step 6: Final answer
    x = 73,828.11

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.