Home / 64,685.04-89,069.40-55,232.88

Finding the Fourth Proportional to 64,685.04, 89,069.40 and 55,232.88

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Solution

The fourth proportional to 64,685.04, 89,069.40 and 55,232.88 is: 76,054.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,685.04 : 89,069.40 = 55,232.88 : x
  2. Step 2: Convert to fraction form
    64,685.04/89,069.40 = 55,232.88/x
  3. Step 3: Cross multiply
    64,685.04x = 89,069.40 × 55,232.88
  4. Step 4: Simplify right side
    64,685.04x = 4,919,559,481.87
  5. Step 5: Solve for x
    x = 4,919,559,481.87/64,685.04
  6. Step 6: Final answer
    x = 76,054.05

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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.