Home / 64,761.12-97,128.72-18,001.44

Finding the Fourth Proportional to 64,761.12, 97,128.72 and 18,001.44

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Solution

The fourth proportional to 64,761.12, 97,128.72 and 18,001.44 is: 26,998.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,761.12 : 97,128.72 = 18,001.44 : x
  2. Step 2: Convert to fraction form
    64,761.12/97,128.72 = 18,001.44/x
  3. Step 3: Cross multiply
    64,761.12x = 97,128.72 × 18,001.44
  4. Step 4: Simplify right side
    64,761.12x = 1,748,456,825.36
  5. Step 5: Solve for x
    x = 1,748,456,825.36/64,761.12
  6. Step 6: Final answer
    x = 26,998.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.