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Finding the Fourth Proportional to 60,288.39, 90,436.68 and 20,848.58

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Solution

The fourth proportional to 60,288.39, 90,436.68 and 20,848.58 is: 31,274.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,288.39 : 90,436.68 = 20,848.58 : x
  2. Step 2: Convert to fraction form
    60,288.39/90,436.68 = 20,848.58/x
  3. Step 3: Cross multiply
    60,288.39x = 90,436.68 × 20,848.58
  4. Step 4: Simplify right side
    60,288.39x = 1,885,476,357.91
  5. Step 5: Solve for x
    x = 1,885,476,357.91/60,288.39
  6. Step 6: Final answer
    x = 31,274.29

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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.