Home / 65,905.32-90,935.10-39,056.16

Finding the Fourth Proportional to 65,905.32, 90,935.10 and 39,056.16

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Solution

The fourth proportional to 65,905.32, 90,935.10 and 39,056.16 is: 53,889.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,905.32 : 90,935.10 = 39,056.16 : x
  2. Step 2: Convert to fraction form
    65,905.32/90,935.10 = 39,056.16/x
  3. Step 3: Cross multiply
    65,905.32x = 90,935.10 × 39,056.16
  4. Step 4: Simplify right side
    65,905.32x = 3,551,575,815.22
  5. Step 5: Solve for x
    x = 3,551,575,815.22/65,905.32
  6. Step 6: Final answer
    x = 53,889.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.