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Finding the Fourth Proportional to 60,101.70, 90,158.58 and 20,653.62

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Solution

The fourth proportional to 60,101.70, 90,158.58 and 20,653.62 is: 30,982.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,101.70 : 90,158.58 = 20,653.62 : x
  2. Step 2: Convert to fraction form
    60,101.70/90,158.58 = 20,653.62/x
  3. Step 3: Cross multiply
    60,101.70x = 90,158.58 × 20,653.62
  4. Step 4: Simplify right side
    60,101.70x = 1,862,101,051.06
  5. Step 5: Solve for x
    x = 1,862,101,051.06/60,101.70
  6. Step 6: Final answer
    x = 30,982.50

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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.