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Finding the Fourth Proportional to 60,160.70, 90,181.56 and 28,515.20

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Solution

The fourth proportional to 60,160.70, 90,181.56 and 28,515.20 is: 42,744.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,160.70 : 90,181.56 = 28,515.20 : x
  2. Step 2: Convert to fraction form
    60,160.70/90,181.56 = 28,515.20/x
  3. Step 3: Cross multiply
    60,160.70x = 90,181.56 × 28,515.20
  4. Step 4: Simplify right side
    60,160.70x = 2,571,545,219.71
  5. Step 5: Solve for x
    x = 2,571,545,219.71/60,160.70
  6. Step 6: Final answer
    x = 42,744.60

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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.