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Finding the Fourth Proportional to 54,101.60, 81,152.40 and 31,925.60

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Solution

The fourth proportional to 54,101.60, 81,152.40 and 31,925.60 is: 47,888.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,101.60 : 81,152.40 = 31,925.60 : x
  2. Step 2: Convert to fraction form
    54,101.60/81,152.40 = 31,925.60/x
  3. Step 3: Cross multiply
    54,101.60x = 81,152.40 × 31,925.60
  4. Step 4: Simplify right side
    54,101.60x = 2,590,839,061.44
  5. Step 5: Solve for x
    x = 2,590,839,061.44/54,101.60
  6. Step 6: Final answer
    x = 47,888.40

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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.