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Finding the Fourth Proportional to 60,106.80, 89,987.40 and 36,778.80

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Solution

The fourth proportional to 60,106.80, 89,987.40 and 36,778.80 is: 55,062.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,106.80 : 89,987.40 = 36,778.80 : x
  2. Step 2: Convert to fraction form
    60,106.80/89,987.40 = 36,778.80/x
  3. Step 3: Cross multiply
    60,106.80x = 89,987.40 × 36,778.80
  4. Step 4: Simplify right side
    60,106.80x = 3,309,628,587.12
  5. Step 5: Solve for x
    x = 3,309,628,587.12/60,106.80
  6. Step 6: Final answer
    x = 55,062.47

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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.