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Finding the Fourth Proportional to 79,675.25, 109,954.77 and 45,690.18

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Solution

The fourth proportional to 79,675.25, 109,954.77 and 45,690.18 is: 63,054.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,675.25 : 109,954.77 = 45,690.18 : x
  2. Step 2: Convert to fraction form
    79,675.25/109,954.77 = 45,690.18/x
  3. Step 3: Cross multiply
    79,675.25x = 109,954.77 × 45,690.18
  4. Step 4: Simplify right side
    79,675.25x = 5,023,852,649.49
  5. Step 5: Solve for x
    x = 5,023,852,649.49/79,675.25
  6. Step 6: Final answer
    x = 63,054.12

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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.