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Finding the Fourth Proportional to 53,427.60, 80,141.40 and 49,928.40

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Solution

The fourth proportional to 53,427.60, 80,141.40 and 49,928.40 is: 74,892.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,427.60 : 80,141.40 = 49,928.40 : x
  2. Step 2: Convert to fraction form
    53,427.60/80,141.40 = 49,928.40/x
  3. Step 3: Cross multiply
    53,427.60x = 80,141.40 × 49,928.40
  4. Step 4: Simplify right side
    53,427.60x = 4,001,331,875.76
  5. Step 5: Solve for x
    x = 4,001,331,875.76/53,427.60
  6. Step 6: Final answer
    x = 74,892.60

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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.