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Finding the Fourth Proportional to 64,364.60, 96,611.70 and 31,111.40

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Solution

The fourth proportional to 64,364.60, 96,611.70 and 31,111.40 is: 46,698.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,364.60 : 96,611.70 = 31,111.40 : x
  2. Step 2: Convert to fraction form
    64,364.60/96,611.70 = 31,111.40/x
  3. Step 3: Cross multiply
    64,364.60x = 96,611.70 × 31,111.40
  4. Step 4: Simplify right side
    64,364.60x = 3,005,725,243.38
  5. Step 5: Solve for x
    x = 3,005,725,243.38/64,364.60
  6. Step 6: Final answer
    x = 46,698.42

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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.