Home / 64,145.40-88,398.18-55,747.32

Finding the Fourth Proportional to 64,145.40, 88,398.18 and 55,747.32

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Solution

The fourth proportional to 64,145.40, 88,398.18 and 55,747.32 is: 76,824.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,145.40 : 88,398.18 = 55,747.32 : x
  2. Step 2: Convert to fraction form
    64,145.40/88,398.18 = 55,747.32/x
  3. Step 3: Cross multiply
    64,145.40x = 88,398.18 × 55,747.32
  4. Step 4: Simplify right side
    64,145.40x = 4,927,961,627.88
  5. Step 5: Solve for x
    x = 4,927,961,627.88/64,145.40
  6. Step 6: Final answer
    x = 76,824.86

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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.