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Finding the Fourth Proportional to 101,750.67, 140,415.93 and 56,435.59

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Solution

The fourth proportional to 101,750.67, 140,415.93 and 56,435.59 is: 77,881.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,750.67 : 140,415.93 = 56,435.59 : x
  2. Step 2: Convert to fraction form
    101,750.67/140,415.93 = 56,435.59/x
  3. Step 3: Cross multiply
    101,750.67x = 140,415.93 × 56,435.59
  4. Step 4: Simplify right side
    101,750.67x = 7,924,456,064.90
  5. Step 5: Solve for x
    x = 7,924,456,064.90/101,750.67
  6. Step 6: Final answer
    x = 77,881.12

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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.