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Finding the Fourth Proportional to 64,121.64, 88,512.54 and 57,395.40

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Solution

The fourth proportional to 64,121.64, 88,512.54 and 57,395.40 is: 79,227.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,121.64 : 88,512.54 = 57,395.40 : x
  2. Step 2: Convert to fraction form
    64,121.64/88,512.54 = 57,395.40/x
  3. Step 3: Cross multiply
    64,121.64x = 88,512.54 × 57,395.40
  4. Step 4: Simplify right side
    64,121.64x = 5,080,212,638.32
  5. Step 5: Solve for x
    x = 5,080,212,638.32/64,121.64
  6. Step 6: Final answer
    x = 79,227.74

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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.