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Finding the Fourth Proportional to 70,101.12, 105,153.60 and 28,548.48

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Solution

The fourth proportional to 70,101.12, 105,153.60 and 28,548.48 is: 42,823.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,101.12 : 105,153.60 = 28,548.48 : x
  2. Step 2: Convert to fraction form
    70,101.12/105,153.60 = 28,548.48/x
  3. Step 3: Cross multiply
    70,101.12x = 105,153.60 × 28,548.48
  4. Step 4: Simplify right side
    70,101.12x = 3,001,975,446.53
  5. Step 5: Solve for x
    x = 3,001,975,446.53/70,101.12
  6. Step 6: Final answer
    x = 42,823.50

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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.