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Finding the Fourth Proportional to 48,334.40, 72,458.40 and 18,742.40

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Solution

The fourth proportional to 48,334.40, 72,458.40 and 18,742.40 is: 28,096.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,334.40 : 72,458.40 = 18,742.40 : x
  2. Step 2: Convert to fraction form
    48,334.40/72,458.40 = 18,742.40/x
  3. Step 3: Cross multiply
    48,334.40x = 72,458.40 × 18,742.40
  4. Step 4: Simplify right side
    48,334.40x = 1,358,044,316.16
  5. Step 5: Solve for x
    x = 1,358,044,316.16/48,334.40
  6. Step 6: Final answer
    x = 28,096.85

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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.