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Finding the Fourth Proportional to 60,164.60, 90,254.63 and 28,121.30

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Solution

The fourth proportional to 60,164.60, 90,254.63 and 28,121.30 is: 42,185.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,164.60 : 90,254.63 = 28,121.30 : x
  2. Step 2: Convert to fraction form
    60,164.60/90,254.63 = 28,121.30/x
  3. Step 3: Cross multiply
    60,164.60x = 90,254.63 × 28,121.30
  4. Step 4: Simplify right side
    60,164.60x = 2,538,077,526.62
  5. Step 5: Solve for x
    x = 2,538,077,526.62/60,164.60
  6. Step 6: Final answer
    x = 42,185.56

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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.