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Finding the Fourth Proportional to 101,735.58, 140,396.79 and 56,415.47

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Solution

The fourth proportional to 101,735.58, 140,396.79 and 56,415.47 is: 77,854.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,735.58 : 140,396.79 = 56,415.47 : x
  2. Step 2: Convert to fraction form
    101,735.58/140,396.79 = 56,415.47/x
  3. Step 3: Cross multiply
    101,735.58x = 140,396.79 × 56,415.47
  4. Step 4: Simplify right side
    101,735.58x = 7,920,550,612.26
  5. Step 5: Solve for x
    x = 7,920,550,612.26/101,735.58
  6. Step 6: Final answer
    x = 77,854.28

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1.5x scale

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.